“Can Havana be purified? And if so, will such purification result in the eradication of yellow fever and malaria? Both questions can be answered affirmatively and positively. Havana is no dirtier than many another city has been. In England, in the olden time, the earthen floors were strewn with rushes. When these became sodden with filth beyond all endurance, fresh rushes were thrown over the old ones, and these in turn were buried, until the foul accumulation was several feet deep. Excrement was allowed to remain in and around the houses indefinitely, or was thrown into the streets regardless of consequences. In London, the frequent cry of, ‘Ware below!’ indicated that the household slops were about to be poured from an upper window. These conditions remained until repeated visits of the great sanitary teachers—the plague, the black death, the cholera, and other pestilences, which devastated cities and swept whole villages out of existence—had taught their hard lesson. On the continent the ignorance and neglect were, if possible, even greater. We have profited by the bitter experience of our ancestors; and no intelligent person questions the merit of sanitary works. But their true value is not yet fully appreciated, even by educated men whose interests are at stake.
“The poison of yellow fever is ponderable. It clings to low levels and usually follows the lines of greatest humidity. Like malaria, it is more active—or at least more to be feared—by night than by day. The danger from it in any quarter of an infected locality depends upon the presence primarily of filth, secondarily of dampness; and it increases in direct proportion to the confinement and stagnation of the air. Infected cellars are more dangerous than infected rooms. The holds of ships are notorious hotbeds of the disease.
“In Havana the average height of the ground floor of a house above the soil is but six or seven inches; and this space is unventilated. The earth is not only damp, but is sodden with putrefying organic matter. The houses are closely built, without adequate space for ventilation between them. In the poorer quarters the population is crowded, a whole family often occupying a single room. The emanations from the cesspool and garbage-vault pervade, as has been stated, the kitchen and the sleeping-and living-rooms, even of houses of the better class. The standard of personal cleanliness is, necessarily, very low. These conditions, for which the citizens are responsible, are sufficient in themselves to transform the most healthy locality into a fever-nest. In the case of Havana, they are accumulated by climatic conditions favourable to, but in no case accountable for, the propagation of disease. No amount of rainfall, no high average of humidity, and no degree of temperature will cause zymotic pestilence, if cleanliness be secured and maintained, and proper drainage of the soil established.”
In the notes which Colonel Waring brought with him from Cuba, the following improvements are specified as absolutely necessary for the sanitary redemption of Havana:
(1) The immediate organisation of a Department of Public Cleaning,” under the full control of a single Commissioner experienced in the conduct of such work,” who should have authority to act as occasion may require.
The chief function of the Department would be the maintenance of a “constant state of cleanliness” in all the streets and places of public business or resort, including the abattoirs and markets. “It should also control the disposal of all wastes, except sewage—by cremation and otherwise.”
(2) The construction of a system of sewers “to receive the liquid wastes of all houses of the main city.” The topography of the city divides it naturally into several districts. Each of these should be served by a distinct sewerage system, which should discharge directly into the harbour or the Gulf, as the case may be. “ Before such discharge, the effluent should be effectively clarified by one of the various well known methods; so that it would carry only its dissolved impurities.” The dilution would be immediate and more than sufficient; for the daily movement of sea water into and out of the harbour is about six thousand times as great as would be the day’s discharge of clarified sewage from the harbour slope of the city.
(3) The clearing out and filling with clean earth of all the cesspools and garbage-vaults, and the supplying to each house of a suitable water-closet connected with the public sewer system. The closets furnished should be practically automatic in operation, and not liable to damage from ignorance or carelessness. They should be made so that no foreign substance able to cause an obstruction in the house drain or the sewer could pass out of sight. If more elaborate plumbing be desired, this may be put in by the householder, under proper supervision, at his own expense. The immediate installation of the water-closet in each house is the only course which will make possible the annihilation of the cesspool; and Havana will not be a healthy city until this result is accomplished. The benefit that will be gained when it is done is out of all proportion to the insignificant cost of the doing.
(4) The paving, or repaving, of all the streets with the best quality of asphaltum. Some form of artificial paving of the streets of cities is indispensable. Mr. Edwin Chadwick says that between the two divisions of a town population, similarly situated in general condition, one part inhabiting streets which are unpaved and another inhabiting streets that are paved, a difference of health is observed. He cites instances showing the sanitary benefit resulting from paving.