The biologist has also rendered great aid to sanitary science in

discovering many other species of bacteria that are helpful to man. Our

polluted waters could not be purified, our air could not be cleared

from foul odors, nor the proper decomposition of organic matters go

on, without the aid of bacteria. These little vegetable growths, while

working much harm upon humanity, contribute far more to their comfort,

well-being, and happiness than they do to their ill. Possibly no

better illustrations can be given of the value of bacteriology to

sanitary science, and the great progress it has brought about, than

to contrast a cholera outbreak of a few years ago with one occurring

more recently; or to point to the efficacy of purifying water by the

assistance of bacteria. Another disease, pulmonary consumption, may

also be noticed, but the triumph here is not so marked as yet.

The first outbreak of cholera in the United States occurred in 1832.

In one special hospital in New York city, 2030 patients were received

in the nine weeks from July 1 to September 1, and of these 850 died.

An eye-witness, who was personally known to the writer, one not given

to exaggeration, said that the state of dread and alarm had been

increasing until, when the disease first made its appearance in New

York, fully one half of the population had left the city, many of

the physicians fleeing with the rest. There was no efficient health

department, and no organized system for the protection of the public

health. This gentleman was a city missionary, and, in the performance

of his duties, visited many of the houses. He mentioned visiting one

of these on a morning when the fifteenth body had been carried out.

It was the time of the rumble of the dead cart and the indiscriminate

burial in public trenches. Contrast the horrors of this scene with the

last attempt of cholera to invade the United States, in 1893, when,

notwithstanding its presence at the quarantine station in New York

harbor, and the actual presence of a few well-authenticated cases in

the city itself, _not one of these cases proved a focus for the spread

of the disease_.

The opinion that water in some way acts as a conveyer of disease can

be generalized after a very little observation. To explain how it does

this is a problem that was attempted to be solved by the chemist. He

added vastly to our knowledge, but it was not until the biologist

showed the presence of the disease-producing bacteria in water that

a full explanation was possible. But the biologist has done more: it

has been found, and notably in the very complete series of experiments

carried on by the Massachusetts Board of Health, that even an effluent

of a sewer, if filtered through a bed of sand, is purified to such

an extent that the filtrate is a perfectly safe water to drink. The

dangerous organic matter disappears, and ninety-eight per cent of the

bacteria is removed. And it is pleasing to note, when one has so much

to say of the dangers of bacteria, that the purification is entirely

brought about by the action of bacteria working for the good of man.

A sand filter bed does not purify water properly until it has been

in operation for a few days, when the top of the bed is covered with

a slime in which the bacteria act upon the organic matter in the

water and purify it. The fact of the purification was known before

the manner in which it was done was understood; and in those cities

where the authorities have acted upon this knowledge and have purified

their water supply, the influence upon the death-rate of typhoid fever

is almost as marked as those already quoted for typhus fever, while

the scourge of cholera has been almost entirely removed from their

borders, as many an instance during the late outbreak in Europe could

illustrate. It does not contribute to our self-esteem to know that most

of the water supplies so filtered are to be found abroad. There is not

enough of “practical politics” in filter beds to charm the traditional

alderman of our cities.

It is now clearly proven that a species of bacteria is uniformly

present in pulmonary consumption. This bacillus is to be found in

the material coughed up by those who are ill with that disease. It

has considerable tenacity of life; the expectorated material can be

dried, pulverized into dust, and carried about on the wind; should the

bacteria so dried and carried find a proper soil, they can grow and

reproduce the disease. Fortunately, a combination of circumstances

is required for the contraction of this disease, or it would be far

more prevalent than it is. Notwithstanding, it already claims more

victims than any other single disease. What has sanitary science done

for its repression? It is attempting, in a tentative way, to obtain

a registration of those who are consumptives, in order to teach

them to avoid being possible sources of infection; to disinfect the

discharges carrying the bacteria, and at times the rooms occupied by

the consumptives. In Rome, for example, the services of the public

disinfectors are asked for as eagerly for the room occupied by a

consumptive as for one that had been used by a person suffering from

diphtheria. In New York city, where the department of health has been

exercising an oversight and care over the consumptives, there has been

a constantly diminishing death-rate from all tubercular diseases from

1886, when the rate was 4.42, to 1897, when it was 2.85, with the

single exception of 1894, which was lower than 1895. It is too soon to

predict the result, but the proper care of consumptives promises much

to check the ravages of the disease.

[Illustration: SAND FILTER BED.]

One of the charms connected with the great results indicated is the

simplicity of the methods employed to bring them about. While complex

schemes and elaborate machinery may be necessary whenever the amount

of service to be rendered requires organization and division of labor

to properly accomplish the desired results, the principles are such

that they can be executed in the smallest hamlet, and with the very

crudest paraphernalia. The two great weapons of the sanitarian in

fighting disease are isolation and disinfection. Dr. Henry M. Baker,

the efficient secretary of the State Board of Health of Michigan,

has for years collected and tabulated the results of the observing

and non-observing of these precautions in his State. He has a happy

faculty for graphically presenting the results. One of his diagrams is

presented here and needs no explanation. In very few of these outbreaks

could there have been any municipal disinfecting plant or isolating

hospital.

Isolation and disinfection—but the old quarantine and fumigation under

new names! Who of us has not sympathized with the traveler of the

earlier days in the Levant, when he was condemned to days and weeks of

detention in the barren lazaretto? And even at so comparatively recent

a date as the pilgrimage recorded by Mark Twain in his “Innocents

Abroad,” he states that the Italians found it more to their convenience

to fumigate travelers than to wash themselves. How very different is a

modern quarantine station, such as may be found near any of our more

important ports on the Atlantic coast. If the health officer of the

port finds a contagious disease upon board, he immediately removes the

sick to the hospital, and keeps the well under supervision long enough

to see if the disease has been communicated to any. He may keep them on

shipboard; but more likely, if the ship must be disinfected, he removes

them to the detention station, safely separated from the hospital. The

steerage has been crowded, and there is need of disinfection of their

persons and clothing. Under proper supervision, each is required to

take a bath, for which abundant facilities are furnished; and while

this is doing their clothing has been placed in the steam disinfecting

apparatus, a partial vacuum secured, superheated steam introduced,

the clothing thoroughly disinfected, a partial vacuum again produced,

whereby the contents are rapidly dried, and they are ready to be put

on again by the time the bath is completed. The luggage is treated

in the same way, while the cargo is probably treated to a sulphur

fumigation,—the sulphur being burned in furnaces and the fumes carried

to all parts of the cargo through lines of hose. In the course of a

very few days, at least, all but the sick can proceed on their journey

without any risk of conveying the disease.

Everything that has thus far been chronicled regarding the progress

of sanitary science has related to the diminution of the death-rate

and the prevention of disease. After all, is this worthy the telling?

When one learns “how the other half lives,” or, with more restricted

knowledge, realizes to a degree the intensity of the remark of a young

Hebrew, replying to a command of a police officer to clean up, as

related in “The Workers” by Professor Wykoff: “You tell us we’ve got

to keep clean,” he answered in broken English, lifting his voice to a

shout above the clatter of machines; “what time have we to keep clean,

when it’s all we can do to get bread? Don’t talk to us about disease;

it’s _bread_ we’re after, _bread_!”

Is it worthy of boasting that sanitary science is only increasing

the hardships and adding to the number of mouths to be fed, without

opening up new ways to earn one’s bread? Even if it be so decided, and

all the claims of progress thus far made be declared wanting, there

still remains much worthy of praise. Sanitary science strives not only

to prevent disease, but also to promote health, and its progress is

fully as marked in its efforts at promotion as in those of prevention,

although we do not possess the cold figures of even imperfect vital

statistics to demonstrate the proposition.

It must be kept in mind that sanitary science is wider than sanitation

in its technical sense. One would not care to assert that philanthropic

effort and sweet charity are resultants of the development of sanitary

science,—very few care to assert an evident untruth. But the influence

of this study has been widespread and beneficial. The whole round of

social science is also permeated with the truths demonstrated by the

sanitarian, and is likewise deeply indebted to its teachings. Our field

broadens greatly as we view it, just as one who has been traveling

through a vale of surpassing grandeur, because of the mountain barriers

on either side, finds himself confronted by a park whose beauty is

enhanced by its variety as well as its extent, bounded, it is true, by

the same mountains, but merely a hazy definition of the distant horizon.

In the construction of dwellings, for example, the small, low ceiled

rooms, whose earthen or stone floors were covered with rushes seldom

removed, the absorbers of whatever might fall upon the floor; the

unpaved, unswept, and unsewered street; the domestic water supply but a

well into which filters the water from the adjoining cesspool,—these

and many similar destroyers of health and comfort can no longer be

found among nations classed as enlightened in our school geographies.

Even the improvements of half a century ago—the tenements improvised

out of the deserted mansions of the well-to-do, with the additions

built on the rear of the lot to increase the density of the

population and the rent of the owner (as well as the death-rate),

are disappearing, and in their places we find dwellings capable of

furnishing air and light to all of the residents.

[Illustration: A QUARANTINE STATION.]

Then, in the matter of streets, how much more attention is now given to

small parks! When about the middle of the century interest in public

parks was revived, the efforts of the various cities were directed to

the securing of large tracts of ground and beautifying them in every

way. They were open to every one, it is true, but too often too far

removed to be of use to the submerging tenth. Now, while not adorning

these with one garland less, the effort is making to break up the

congestion of the crowded districts by breathing spaces, to the comfort

and vigor of those who must make the surrounding houses their homes.

The streets, too, no longer paved with the unsightly cobble-stones,

are made noiseless with the asphalt paving and, what is more to the

purpose, can be easily cleansed by flushing. When practical business,

and not practical politics, prevails in the municipality, there is no

opportunity for the household refuse to accumulate, although no longer

rushes are available to receive it, for it is regularly and promptly

removed.

The exigencies of trade compelled our government to establish its

bureau for the inspection of meat. The necessity of an inspection of

foodstuffs for export demonstrates the possibility of adulteration for

the home market. While, possibly, the ingenuity of the sophisticator

has more than kept pace with the keenness of the inspector, the health

of the people has been maintained, their comfort promoted, and their

resources husbanded by the inspections carried on by the various city

and state boards of health.

The welfare of the people at home, in their dwellings and at their

tables, does not limit the efforts of the sanitarian. He takes

cognizance of the daily toil, the ceaseless grind, to win one’s daily

bread. He recognizes that some callings are dangerous or annoying to

the people, and devises methods to overcome this, or failing in this,

insists that such occupations must be carried on remote from the

dwelling-place of man. Others, he finds, bring danger to those who are

employed. This may not be an inherent danger, but one acquired by our

crowding of operatives, or in other ways not securing to them proper

comfort; and factory inspectors are at work to reduce these dangers to

a minimum, and to prevent child labor as well—giving to youth, as far

as cessation from overmuch toil can give, an opportunity to develop

into physical manhood or womanhood. The sanitarian insists upon proper

ventilation in mines, and tries to devise the means to remove the

danger from those trades that ordinarily are inherently dangerous.

The sanitarian seeks to aid in the amenities and relaxations of life

as well. The playgrounds for children, the athletic grounds by the

riverside at Boston, recreation piers in New York, are examples of

this. And all of these are comparatively recent efforts, adding to the

catalogue of achievements during the century. It was the arch-enemy

who, in the poem of antiquity, said: “All that a man hath will he give

for his life.” But he made the remark after much observation, and to

Jehovah, unto whom even he would not dare to lie; and the rolling years

since the Hebrew epic was first written have only added testimony

to the truth of the assertion. In these later days, when the rule

and plummet are everywhere applied, where the scientist delves and

classifies to seek the cosmos in the apparent chaos, there was evolved

out of self-seeking for life a higher and better quest,—a search

for those things which make for the health of all. This search has

widened, until many a broad savannah has been trodden, many a mountain

scaled and wilderness explored. With its ever extending view, new

responsibilities and greater cares have been thrust upon those who are

endeavoring to rule in this domain. A community, a nation, is but a

unit. Let one part suffer, and all are in pain; let one but decay, and

rot is imminent everywhere. There can be no true social progress, no

real stability of government, no national prosperity worthy the name,

unless the environment of each individual permits the enjoyment of

personal health, if he individually observes but the ordinary care of

self. And whatever else of progress for sanitary science may be granted

or denied as belonging to our century, the crowning claim of all, which

cannot be taken from her, is that, along with the ideas embodied in

commonweal and commonwealth, she has added the other of equal dignity

and worth—Public Health.

THE CENTURY’S ARMIES AND ARMS

BY LIEUTENANT-COLONEL ARTHUR L. WAGNER,

_Assistant Adjutant General, U. S. Army_.

A true appreciation of the progress made in the arts and sciences

in the nineteenth century can be obtained only by contrasting the

conditions found at present with those existing a hundred years ago.

The difference between the sperm candle and the electric light; between

the stage-coach and the rapid-flying express train; between the flail

and the threshing machine; between the hand-loom and the machinery of

the modern woollen mill; between the cruel medical operations of five

score years ago and the skillful surgery, with the use of anæsthetics,

of the present day; or between the mail-carrier with letters in his

saddle-bags and the electric telegraph flashing news instantaneously

from continent to continent; marks the difference between the beginning

of the nineteenth and the opening of the twentieth centuries.

But there is scarcely an agency that has been employed during this

wonderful century for the improvement of the condition of man that has

not been enlisted for his destruction. Steam, electricity, chemical

knowledge, engineering skill, and mechanical invention have all been

employed in the science of war, and everything pertaining to the

organization, arms, equipment, supply, training, and even the size of

armies, has been so revolutionized that there is scarcely anything in

common between the forces that fought at Marengo and those employed in

recent wars, except the characteristic of being armed and organized

bodies of soldiers under military leadership.

The nineteenth century was born in the midst of war. All Europe was

an armed camp, and the contest between the principles of the French

Revolution and the old feudal system had taken the form of actual

strife upon the field of battle. A great alteration was taking place in

the methods of war; the old pedantic strategy of the Austrian school

had already received a rude shock at the hands of the brilliant young

Bonaparte, and the old tactical methods bequeathed by Frederick the

Great were, also, soon to be shattered by the genius of the newer and

greater warrior. To appreciate the changes that were already being made

in military methods, a brief glance at the organization of the armed

forces in the latter part of the eighteenth century is necessary. The

Prussian army, as organized by the great Frederick, was regarded as the

finest of the time. In it the most exact and machine-like methods were

observed, the most careful accuracy in marching was required, drill was

carried to mechanical perfection, volley firing was conducted with the

greatest precision, and no skirmishers were employed. In comparison

with later methods, the whole system may be characterized as exact,

methodical, and slow. Armies were supplied entirely from magazines, by

means of long and cumbrous trains, and the art of moving rapidly and

subsisting on the country was still to be discovered.

[Illustration: OLD STYLE SHRAPNEL.]

The French army produced by the Revolution, and led by such men as

Dugommier, Hoche, Moreau, and Bonaparte, was trained to operate

in column, to deploy quickly into line, and generally to act with

celerity; while the impoverished treasury of the republic compelled its

armies to live entirely upon the country in which they were operating,

as the only alternative to starvation. This entailed serious hardships

to the soldiers, and great distress to the population of the country

in which they were acting, but it marked distinctly the beginning of a

new system of supply, which contributed greatly to the rapid movement

of armies. The French army, at the beginning of the century, contained

no regiments, but was organized into demi-brigades, each of which

consisted of four battalions, each comprising ten companies, two of

which were trained to act as skirmishers. These demi-brigades, with

one or more batteries of artillery, constituted a division, to which a

small force of cavalry was generally added. In 1805 Napoleon, then the

supreme ruler of France, made important changes in the organization of

the army. The demi-brigade was replaced by the two battalion regiments,

each regiment now consisting of eight companies. Two regiments formed a

brigade, and two brigades and a regiment of light infantry constituted

a division. On the light regiment devolved the duties of skirmishers;

namely, to harass and develop the enemy before the main attack. The

divisions were grouped into larger organizations known as _corps

d’armée_, or army corps, each of which consisted of all arms of the

service, and was, in fact, a force capable of operating independently

as a small army.[2] A corps of reserve cavalry was also formed. In

numbers the cavalry was equal to one fourth, and the artillery one

eighth of the strength of the infantry. The infantry was armed with a

smooth-bore, muzzle-loading, flint-lock musket, which required some

thirty-two distinct motions in loading, and which had an effective

range of only two hundred yards, though by giving it a high elevation

it could do some damage at twice that distance. This weapon bore about

the same relation to the magazine rifle of the present day that the

old-fashioned sickle bears to the modern mowing-machine. The artillery

consisted of muzzle-loading, smooth-bore guns, which had less than

one fourth the range of the modern infantry rifle. Cavalry, being

able to form with comparative impunity within close proximity of the

opposing infantry, could sweep down upon it in a headlong charge; and

the use of the sabre on the field of battle, now so rare, was then an

almost invariable feature of every conflict. Under Napoleon the armies

continued to “live on the country,” but magazines of supplies were

carefully prepared to supplement the exhausted resources of the theatre

of war.

[2] Brigades and divisions had long existed, but the army corps

was a creation of Napoleon.

In besieging a fortified place, the first parallel or line of batteries

of the besiegers was habitually established at about six hundred yards

from the enemy’s works, a distance then at long artillery range, but

which would now be under an annihilating fire from infantry rifles. The

cannon used solid shot almost exclusively, though early in the present

century a projectile, invented by Lieutenant Shrapnel, of the British

army, and which now universally bears his name, was introduced. This

consisted of a thin cast-iron shell filled with round musket balls, the

interstices between which were filled by pouring in melted sulphur or

resin, to solidify the mass and prevent it from cracking the shell when

the piece was fired. A hole was bored through the mass of sulphur and

bullets to receive the bursting charge, which was just sufficient to

rupture the shell and release the bullets, which then moved with the

velocity that the projectile had at the moment of bursting. Shrapnel

has at all times been a destructive missile, though in its early form

it was insignificant in comparison with the “man-killing projectile”

which now bears the same designation.

[Illustration: CONGREVE ROCKET.]

In the year 1806, the Congreve rocket was added to the weapons of war.

It consisted of a case of wrought iron, filled with a composition of

nitre, charcoal, and sulphur, in such proportions as to burn more

slowly than gunpowder. The head of the rocket consisted of a solid

shot, a shell, or a shrapnel. At the base was fastened a stick, which

secured steadiness for the projectile in its flight. The range of the

rocket was scarcely more than five hundred yards, though a subsequent

improvement, which dispensed with the guide-stick and substituted three

tangential vents, increased the range very considerably. Congreve

rockets were used with effect in Europe in 1814, and against our raw

militia at Bladensburg in the same year. They seem, however, to have

depended more upon the moral effect of their hissing rush than upon any

really destructive properties, and were effective mainly against raw

troops and cavalry. The rocket is now an obsolete weapon, having made

its last appearance in war in the Austrian army in 1866.

[Illustration: U. S. RIFLE MUSKET, 1855.]

Triumphs and Wonders of the 19th Century: The True Mirror of a Phenomenal Era A volume of original, entertaining and instructive historic and descriptive writings, showing the many and marvellous achievements which distinguish an hundred years of material, intellectual, social and moral progress · 第 29 / 76 段