XXXV.
EARTH-CLOSETS.
IN some particulars, the Chinese are in advance of our own nation in
neatness, economy, and healthful domestic arrangements. In China, not a
particle of manure is wasted, and all that with us is sent off in drains
and sewers from water-closets and privies, is collected in a neat manner
and used for manure. This is one reason that the compact and close
packing of inhabitants in their cities is practicable, and it also
accounts for the enormous yields of some of their crops.
The earth-closet is an invention which relieves the most
disagreeable item in domestic labor, and prevents the disagreeable and
unhealthful effluvium which is almost inevitable in all family
residences. The general principle of construction is somewhat like that
of a water-closet, except that in place of water is used dried earth.
The resulting compost is without disagreeable odor, and is the richest
species of manure. The expense of its construction and use is no greater
than that of the common water-closet; indeed, when the outlays for
plumber's work, the almost inevitable troubles and disorders of
water-pipes in a house, and the constant stream of petty repairs
consequent upon careless construction or use of water-works are
considered, the earth-closet is in itself much cheaper, besides being an
accumulator of valuable matter.
To give a clear idea of its principles, mode of fabrication, and
use, we can not do better than to take advantage of the permission given
by Mr. George E. Waring, Jr., of
Newport, R.I., author of an admirable pamphlet on the subject, published
in 1868 by "The Tribune Association" of New-York. Mr. Waring was
formerly Agricultural Engineer of the New-York Central Park, and has
given much attention to sanitary and agricultural engineering, having
published several valuable works bearing in the same general direction.
He is now consulting director of "The Earth-Closet Company," Hartford,
Ct., which manufactures the apparatus and all things appertaining to
it--any part which might be needed to complete a home-built structure.
But with generous and no less judicious freedom, they are endeavoring to
extend the knowledge of this wholesome and economical process of
domestic sanitary engineering as widely as possible, and so allow us to
present the following instructions for those who may desire to construct
their own apparatus.
In the brief introduction to his pamphlet, Mr. Waring says:
"It is sufficiently understood, by all who have given the least
thought to the subject, that the waste of the most vital elements of the
soil's fertility, through our present practice of treating human
excrement as a thing that is to be hurried into the sea, or buried in
underground vaults, or in some other way put out of sight and out of
reach, is full of danger to our future prosperity.
"Our bodies have come out of our fertile fields; our prosperity is
based on the production and the exchange of the earth's fruits; and all
our industry has its foundation in arts and interests connected with, or
dependent on, a successful agriculture.
"Liebig asserts that the greatness of the Roman empire was sapped by
the Cloaca Maxima, through which
the entire sewage of Rome was washed into the Tiber. The yearly decrease
of productive power in the older grain regions of the West, and the
increasing demand for manures in the Atlantic States, sufficiently prove
that our own country
is no exception to the rule that has established its sway over Europe.
"The large class who will fail to feel the force of the agricultural
reasons in favor of the reform which this pamphlet is written to uphold,
will realize, more clearly than farmers will, the importance of
protecting dwellings against the gravest annoyance, the most fertile
source of disease, and the most certain vehicle of contagion."
Nevertheless, Mr. Waring thinks that the agricultural argument is no
mean or unimportant one, and says:
"The importance of any plan by which the excrement of our bodies may
be returned to our fields is in a measure shown in the following extract
from an article that I furnished for the
American Agricultural Annual for
1868.
"The average population of New-York City--including its temporary
visitors--is probably not less than 1,000,000. This population consumes
food equivalent to at least 30,000,000 bushels of corn in a year.
Excepting the small proportion that is stored up in the bodies of the
growing young, which is fully offset by that contained in the bodies of
the dead, the constituents of the food are returned to the air by the
lungs and skin, or are voided as excrement. That which goes to the air
was originally taken from the air by vegetation, and will be so taken
again: here is no waste. The excrement contains all that was furnished
by the mineral elements of the soil on which the food was produced.
"This all passes into the sewers, and is washed into the sea. Its
loss to the present generation is complete.
.... "30,000,000 bushels of corn contain, among other minerals,
nearly 7000 tons of phosphoric acid, and this amount is annually lost in
the wasted night-soil of New-York City.
* Other mineral constituents of food--important ones, too--are
washed away in even greater quantities through the same channels; but
this element is the best for illustration because its effect in manure
is the most striking, even so small a dressing as twenty pounds per
acre, producing a marked effect on all cereal crops. Ammonia, too, which
is so important that is is usual in England to estimate the value of
manure in exact proportion to its supply of this element, is largely
yielded by human excrement.
"Practically the human excrement of the whole country is nearly all
so disposed of as to be lost to the soil. The present population of the
United States is not far from 35,000,000. On the basis of the above
calculation, their annual food contains 200,000 tons of phosphoric acid,
being the amount contained in about 900,000 tons of bones, which, at the
price of the best flour of bone, (for manure,) would be worth over
$50,000,000. It would be a moderate estimate to say that the other
constituents of food are of at least equal value with the other
constituents of the bone, and to assume $50,000,000 as the money value
of the wasted night-soil of the United States every year.
"In another view, the importance of this waste can not be estimated
in money. Money values apply, rather, to the products of labor and to
the exchange of these products. The waste of fertilizing matter reaches
farther than the destruction or exchange of products: it lessens the
ability to produce.
"If mill-streams were failing year by year, and steam were yearly
losing force, and the ability of men to labor were yearly growing less,
the doom of our prosperity would not be more plainly written, than if
this slow but certain impoverishment of our soil were sure to continue.
...."But the good time is coming, when (as now in China and Japan)
men must accept the fact that the soil is not a warehouse to be
plundered--only a factory to be worked. Then they will save their raw
material, instead of wasting it, and, aided by nature's wonderful laws,
will weave over and over again the fabric by which we live and prosper.
Men will build up as fast as men destroy; old matters will be reproduced
in new forms, and, as the
decaying forests feed the growing wood, so will all consumed food yield
food again."
With the above brief extract, we shall cease using marks of
quotation, as the following information and statements are appropriated
bodily, either directly or with mere modifications for brevity, from the
little pamphlet of Mr. Waring.
The earth-closet is the invention of the Rev. Henry Moule, of
Fordington Vicarage, Dorsetshire, England.
It is based on the power of clay, and the decomposed organic matter
found in the soil, to absorb and retain all offensive odors and all
fertilizing matters; and it consists, essentially, of a mechanical
contrivance (attached to the ordinary seat) for measuring out and
discharging into the vault or pan below a sufficient quantity of sifted
dry earth to entirely cover the solid ordure and to absorb the urine.
The discharge of earth is effected by an ordinary pull-up similar to
that used in the water-closet, or (in the self-acting apparatus) by the
rising of the seat when the weight of the person is removed.
The vault or pan under the seat is so arranged that the accumulation
may be removed at pleasure.
From the moment when the earth is discharged, and the evacuation is
covered, all offensive exhalation entirely ceases. Under certain
circumstances, there may be, at times, a slight odor as of guano mixed
with earth; but this is so trifling and so local, that a commode
arranged on this plan may, without the least annoyance, be kept in use
in any room.
This statement is made as the result of personal experience. Mr.
Waring says:
"I have in constant use in a room in my house an earth-closet
commode; and even when the pan is entirely full, with the accumulation
of a week's use, visitors examining it invariably say, with some
surprise, 'You don't mean that this particular one has been used!'"
HOW TO MAKE AN
EARTH-CLOSET.
The principle on which the earth-closet is based is as free to all as is
the earth itself, and any person may adopt his own method of applying
it. All that is necessary is to
have a supply of coarsely sifted sun-dried earth with which to cover the
bottom of the vessel to be used, and after use to cover the deposit. A
small box of earth, and a tin scoop are sufficient to prevent the
gravest annoyance of the sickroom. But, of course, for constant use, it
is desirable to have a more convenient apparatus--something which
requires less care, and is less troublesome in many ways.
To this end, the patent invention of Mr. Moule is applicable. This
comprises a tight receptacle under the seat, a reservoir for storing dry
earth, and an apparatus to measure out the requisite quantity, and throw
it upon the deposit.
The arrangement of the mechanism is shown in Fig. 67. A
hopper-shaped reservoir, made of galvanized iron, is supported by a
framework at the back of the seat, which rests on the framework
a, a. Connected with the handle
at the right-hand side, there is an iron lever, which operates a movable
box at the bottom of the reservoir, and causes it to discharge its
contents directly under the seat. When the handle is dropped, the box
returns to its position, and is immediately filled preparatory to
another use.
The hopper-shaped reservoir is supported by two pivots, and has a
slight rocking or vibrating motion imparted to it by each lifting of the
lever. This prevents the earth from becoming clogged, and insures its
regular delivery
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Fig. 68.
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The construction is more clearly shown in Fig. 68.
In this figure, A is the vibrating hopper for holding the earth. Its
capacity may be increased to any desired extent by building above it a
straight-sized box of any height. It is not unusual, in fixed privies,
to make this reservoir large enough to hold a supply for several months.
As the earth is dry, there is no occasion for the use of any thing
better than common pine boards in making this addition to the reservoir.
B is one side of the wooden frame by which the hopper is supported,
and it may be made of one inch pine or spruce.
C is a box of lacquered or galvanized iron, without either top or
bottom. It moves on two pivots, one of which is shown on its exposed
side. In its present position, its upper end opens into the hopper, and
its lower end is closed by the stationary board over which it stands.
When the handle is pulled up, the lever, which is connected with the
box, jerks it rapidly up, so that its back side closes the opening of
the reservoir, and its bottom opens to the front. In its movement it
discharges its contents of earth forward under the seat. When the handle
is dropped, the box returns to its natural position, and is charged
again.
D is one of the pivots--a correspoding one being on the other
side--by which the hopper is supported, and on which it vibrates.
a, a, a, a, a, a, are the
parts of the framework, the dimensions of which in feet and inches are
given.
The only essential part not shown is an earthen-ware pan without a
bottom, similar to the pan of a water-closet, only not so deep and with
a larger opening, which is attached to the under side of the seat, and
which in a measure prevents the rising of dust, and conducts the urine
to the point at which the most earth falls. This is the least important
part of the invention, but it has a certain advantage.
The self-acting apparatus is more complicated, and persons
wishing it would do best to apply directly to the Company.
THE ORDINARY PRIVY.
In the circular published by the Earth-Closet Company, the following
directions are given:
"An ordinary fixed closet requires the apparatus to be placed at the
back of, and in connection with, the usual seat; the reservoir for
containing the earth being placed above it. Under it there should be a
chamber or vault about four feet by three wide, and of any convenient
depth, with a paved or asphalted bottom, and the sides lined with
cement.
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Fig. 69

[Illustration: An illustration of a commode.]
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Should there be an existing cesspool, it may be altered to the above
dimensions. Into this the deposit and earth fall, and may remain there
three, six, or twelve months, and continue perfectly inodorous and
innoxious, merely requiring to be occasionally leveled by a rake or hoe.
If, however, it should be found impossible or inconvenient to have a
vault underneath, a movable trough, of iron or tarred wood, on wheels,
may be substituted. In this case, it will be advisable to raise the seat
somewhat above the floor, to allow the trough to be of sufficient size.
"By one form of construction, (the 'pull-up,') the pulling up of a
handle releases a sufficient quantity of the dry earth, which is thrown
into the pit or vault, covering the deposit and completely preventing
all smell. By another, (the 'self-acting,') the same effect is produced
by the action of the seat. The apparatus may be placed in, and adapted
to, almost any existing closet or privy, and so arranged that the supply
and removal of earth may be carried on inside or outside as desired."
The following is taken from the company's circular:
"In the commode, the apparatus and earth-reservoir are
self-contained, and a movable pail takes the place of the chamber or
vault above described. This must be emptied as often as necessary, and
the contents may be applied to the garden or field, or be allowed to
accumulate in a heap under cover until wanted for use. This accumulation
is inodorous, and rapidly becomes dry. The commode can stand in any
convenient place in or out of doors. For use in bedrooms, hospital
wards, infirmaries, etc., the commode is invaluable. It is entirely free
from those faint, depressing odors common to portable water-closets and
night-stools, and through its admission one of the greatest miseries of
human life, the foul smells of the sick-room, and one of the most
frequent means of communicating infection, may be entirely prevented. It
is invariably found that, if any failure takes place, it arises from the
earth not being properly
dry. Too much importance can not be attached to this requirement.
The earth-commode will no more act properly without dry earth, than will
a water-closet without water.
"These commodes are made in a variety of patterns, from the cottage
commode to the more expensive ones in mahogany or oak, and vary in price
accordingly. They are made to act either by a handle, as in the ordinary
water-closet, or self-acting on rising from the seat. The
earth-reservoir is calculated to hold enough for about twenty-five
times; and where earth is scarce, or the manure required of
extraordinary strength, the product may be dried as many as seven times,
and without losing any of its deodorizing properties.
"If care be taken to cast one service of earth into the pail when
first placed in the commode, and to have the commonest regard to
cleanliness, not the least offensive smell will be perceptible, though
the receptacle remain unemptied for weeks. Care must also be taken that
no liquid, but that which they are intended to receive, be thrown into
the pails."
The pail used in the commode is made of galvanized iron, and is
shaped very much like an ordinary coal-hod. It has a cover of the same
material, and it may be carried from an upper floor with no more
offensiveness than a hodful of common earth.
Fig. 70 represents a cross-section of the commode, and will enable
the reader more clearly to understand the construction and operation of
the apparatus.
a is the opening in the
seat; b, the "pan;"
c, the pail for receiving the
deposit; d, the hopper for
containing the earth supply; e,
the box by which the earth is measured, and by which it is thrown into
the pail when moved to the position e'
by the operation of the "pull-up;" f,
a door by which the pail is shut in; g,
the cover of the seat; h, the
cover of the hopper; i, a
platform which prevents the escape of earth from
e.
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Fig. 70

[Illustration: A diagram showing a cross-section of a commode,
labeled with a number of italicized letters.] |
HOW TO USE THE
EARTH-CLOSET.
Under this head, the circular issued by the original London company
contains the following:
"The first requirement for the proper working of the earth-closet is
earth perfectly dry and sifted.
"Earth alone is proved to be the best deodorizer, and far superior
to any disinfectants; but where it is difficult to obtain earth
abundantly, sifted ashes, as before stated, may be mixed with it in
proportion of two of earth to one of ashes.
"As the first requirement is dry
earth sifted, and as this
is usually thought to be a great difficulty in the way of the adoption
of the dry earth system, the following remarks will at once remove such
an impression.
"The earth-commode and closet, if used by six persons daily, will
require, on an average, about one hundred weight of earth per week. This
may be dried for family use in a drawer made to fit under the kitchen
range, and which may be filled with earth one morning and left until the
next. The drawer should reach to within two inches of the bottom bar of
the grate. A frame with a handle, covered with fine wire-netting,
forming a kind of shovel, should be placed on this drawer; the finer
ashes will fall through, mixing with the earth, whilst the cinders will
remain on the top, to be, from time to time, thrown on the fire.
"Of course, the most economical method is to provide in the
summer-time a winter store of dry earth, which may be kept in an
out-house, shed, or other convenient place, just as we lay in a winter
store of coals.
THINGS TO BE
OBSERVED.
"Let one fall of earth be in the pail before using.
"The earth must be dry and sifted.
"Sand must not be used.
"No 'slops' must be thrown down.
"The handle must be pulled up with a jerk, and let fall sharply."
REPEATED USE OF EARTH.
Concerning the value and use of the product of the earth-closet, the
following is copied from the London company's circular. (It will be
noticed that reference is made to the
repeated use of the same earth. When the ordure is completely
dried and decomposed, it has not only lost its odor, but it has become,
like all decomposed organic matter, an excellent disinfectant, and the
fifth or sixth time that the same earth is passed through the closet it
is fully as effective in destroying odors as it was when used for the
first time,
and of course each use adds to its value as manure, until it becomes as
strong as Peruvian guano, which is now worth seventy-five dollars per
ton. In fact, it may be made so rich that
one hundred pounds will be a good
dressing for an acre of land.)
"If the closet is over a water-tight cesspool or pit, it will
require emptying at the end of three or six months. The produce, which
will be quite inodorous, should be thrown together in a heap, sheltered
from wet, and occasionally turned over. At the end of a few weeks, it
will be dry and fit for use.
"If the receptacle be an iron trough or pail, the contents should be
thrown together, re-dried, and used over again, four or five times. In a
few weeks they will be dry and fit for use; the value being increased by
repeated action. The condition of the manure should be much the same as
that of guano, and fit for drilling.
The inventor of the earth-closet, Rev. Mr. Moule, says:
"It was to this point (the power of earth or clay to absorb the
products of the decomposition of manure) but particularly to the
repeated action, and
consequently the repeated use of the same earth, that I first directed
the attention of the public. I then pointed out: First. That a very
small portion of dry and sifted earth (one and a half pints) is
sufficient by covering the deposit, to prevent fermentation, (which so
soon sets in whenever water is used,) and the consequent generation and
emission of noxious gases. Second. That if within a few hours, or even a
few days, the mass that would be formed by the repeated layers of
deposit, be intimately mixed by a coarse rake or spade, or by a mixer
made for the purpose, then, in five or ten minutes, neither to the eye
or sense of smell is any thing perceptible but so much earth....When
about three cart-loads of sifted earth had thus been used for my family,
(which averaged fifteen persons,) and left under a shed, I found that
the material first employed was sufficiently dried
to be used again. This process of alternate mixing and drying was
renewed five times, the earth still retaining its absorbent powers
apparently unimpaired. Of the visitors taken to the spot, none could
guess the nature of the compost, though in some cases the heap which
they visited in the afternoon had been turned over that same morning...
"It is only in towns, where the delivery, stowage, and removal of
earth is attended with cost and difficulty, that any artificial aid for
drying the compost would be desirable. On premises not cramped for
space, the atmosphere, especially with a glass roof to the shed, will
act sufficiently fast.
"You may by means of it (the earth system) have a privy close to the
house and a closet up-stairs, from neither of which shall proceed any
offensive smell or any noxious gas. A projection from the back of the
cottage, eight feet long and six feet wide, would be amply sufficient
for this purpose. The nearer three or four feet down-stairs, would be
occupied by the privy, in which, by the seat, would be a receptacle for
dry earth. The 'soil' and earth would fall into the further five or four
feet, which would form the covered and closed shed for mixing and
drying. Up-stairs, the arrangement would be much the same, the deposit
being made to fall clear of every wall. Through this closet the removal
of noxious and offensive matters in time of sickness, and of
slop-buckets, would be immediate and easy; and if the shed below be kept
well supplied with earth, all effluvium would be almost immediately
checked. As to the trouble which this will cause, a very little
experience will convince the cottager that it is less instead of
greater, than the women generally go through at present, while the value
of the manure will afford an inducement to exertion.
"The truth is, that the machinery is more simple, much less
expensive, and far less liable to injury than that of the water-closet.
The supply of earth to the house is as easy
as that of coals. To the closet it may be supplied more easily than
water is supplied by a forcing-pump, and to the commode it can be
conveyed just as coal is carried to the chamber. After use, it can be
removed in either case by the bucket or box placed under the seat, or
from the fixed reservoir, with less offense than that of the ordinary
slop-bucket--indeed, (I speak after four years' experience,) with as
little offense as is found in the removal of coal-ashes. So that, while
servants and others will shrink from novelty and at first imagine
difficulties, yet many, to my knowledge, would now vastly prefer the
daily removal of the bucket or the soil to either the daily working of a
forcing-pump or to being called upon once a year, or once in three
years, to assist in emptying a vault or cesspool."
To the above complete and convincingly apt arguments and statements
of fact, we do not care to add any thing. All that we desire is to
direct public attention to the admirable qualities of this Earth System,
and to suggest that, at least for those living in the country away from
the many conveniences of city life, great water power, and mechanical
assistance, the use of it will conduce largely to the economy of
families, the health of neighborhoods, and the increasing fertility and
prosperity of the country round about.
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