“In this calculation, the deaths from all sources are included from wounds, drowning, and all other external causes as well as from disease. From the latter source the deaths were in the proportion of 1 to 85 of the number employed annually. When it is considered that the ratio applies to the whole service, and therefore includes the most unhealthy sections, the Coast of Africa and the West Indies, it will be admitted, even without reference to former periods, to be very low.”[[34]]

The scurvy, once so fatal in the navy, is now almost unknown in men-of-war, whilst it still prevails often to a most serious extent in the mercantile navy where the same care is not taken. It was a popular opinion in the navy, that the use of lemon juice in the grog was a specific against scurvy; but it is stated that the health of seamen has in some instances been advanced by the discontinuance of the grog itself, and the substitution of coffee. Dr. Nisbett says, “I may state generally, that this substance (lemon juice) in the quantities usually issued (one ounce per diem) does not prevent the appearance of scurvy under circumstances favourable to its production; that in increased quantities it appears to have some power of arresting, at least for a time, this disease in its earlier stages, and is thus of great value; but that it is not to be considered an antidote, and that the only cure for this disease is a full diet of fresh meat and vegetables;” the preventives being, general and personal cleanliness, ventilation, and liberal supplies of good water, in addition to supplies of wholesome food.

The mortality of the home force ships employed chiefly in harbour duty, &c. (where of course they were not cut off from communication or means of infection from the shore,) in Great Britain and Ireland, gives the rate of mortality obtainable by sanitary means, even now confessedly imperfect especially in ventilation, amongst a male population ranging from 15 to 50 years of age, and may be taken as illustrative of the amount of health attainable on shore.

In 1830 the deaths in the navy from disease independently of external causes were—

Disease, per 1000.All Causes, per 1000.
18306·08·7
183111·53·4
183211·914·0
18336·37·9
18344·96·7
18355·97·2
18367·59·5

Mr. Finlaison has lately calculated that the deaths on shore out of 1000 of the population of 29 years of age may be estimated at about 12 per annum. Mr. Rickman calculated that the deaths at that age in Essex and Rutland would be about 12½ persons per 1000 per annum: for the metropolis it would be about 15½ deaths. Out of 1000 workmen in the Government dock-yards, the number of deaths were 15; and hitherto in the metropolitan police force, which is more select than the navy, the number of deaths appear to be about 9 per annum; but about the same number of men is annually invalided from the force. The proportion of deaths amongst the troops appears to be, amongst the household cavalry, 14·5, amongst the dragoons 15·3, amongst the infantry in depôt, 18·5, and amongst the foot guards 21·6. Since the Guards have been in Canada the rate of mortality has been reduced to that of other regiments.

The health of the foot guards is believed to be affected by peculiar circumstances.

I may add, as respects soldiers, that by proper care such epidemics as typhus, scarlet fever, are now scarcely known as affecting large groups in the army, and that such an occurrence would denote to the chiefs of the army medical board the existence of some great neglect into which it would be necessary to make inquiry.

Cost to tenants and owners of the public measures for drainage, cleansing, and the supplies of water, as compared with the cost of sickness.

Persons well acquainted with the inferior descriptions of tenements in Manchester state that a large proportion of them change owners in ten years, and that few remain in the same hands more than twenty years; and it is observed in other populous districts that this description of property most frequently changes hands. The chief obstacle to the execution of legislative measures for public improvements of tenements of the class in question in such districts has been, that large immediate outlays of capital have been required to be made in an inconvenient manner for permanent improvements, by persons possessing only short or transient interests, to whom no means are given for spreading the charge over longer periods of years to make it coincident with the benefits.