TRANSACTIONS OF THE SECTIONS. 193 
.- Household Cavalry.........ccccssessssesssssecseeeeeee 59°O Of the whole deaths. 
Dragoon Guards, &Cs...cccssccscssececeees sda 53°9 do. 
Infantry of the Line.......... Baap ab¥edcudswaccestes 57°3 do. 
Foot Guards...... seabadaneieedge cscs eee saeeheeens 67°7 do. 
These results are very singular, and will appear still more so if it be kept in view— 
throwing out of comparison the Household Cavalry, a very small body, and there- 
fore subject to marked fluctuations—that as the general mortality increases so does 
the ratio of deaths from diseases of the lungs increase. If, therefore, overcrowding 
were the main cause of developing so inordinate an amount of consumption, the 
barrack accommodation for the different branches of the service should be found con- 
tracting in the order in which the general mortality, as well as that from consump- 
tion, increases ; but it happens to be quite otherwise. A careful examination of the 
preceding facts, it is believed, does anything but support the hypothesis of the Com- 
missioners now under consideration. 
There is, however, another and in some respects a more simple, and in unskilful 
hands a safer, way of solving this question, and that is, instead of taking the ratio 
of the mortality from ‘one cause” to the mortality from “all causes,” to deter- 
mine the actual rate of mortality from ‘ each cause,” and I have accordingly placed 
all the preceding results in that form. The detailed Tables hereto appended give the 
results for various terms of life; but in the abstract to which I ask the attention of 
the Section, reference will be made to the results for the soldiers’ ages only. In the 
preparation of the following abstract, the actual mortality per cent. at the given 
ages was in the first place determined, and then the differences per cent. between 
these results and the corresponding ones for England and Wales were found; and 
the abstract will therefore show, for each cause of death in the army, whether it is 
in greater or less activity than in the country generally. 
Asstract D. 
Differences between the Mortality per cent. in the following districts, and that for 
England and Wales. 
-(SoupiErs’ AGES.) 
eR | RP OS OE EI) Ae 
: Lanea- | Density | Density Least 
Group of diseases. London. shire. | -28—-72, | +g fh Senet 
PRSEOEDISIS....0scce0s ee ecccecees +140) +19°6| + 4°8 | —12:4 | — 14:8 
diseases and diseases 
of the respiratory or- 
Peres siacsessecseeses 
2. Residue of 1 diseases | 
+ 19°38 | +32°3 | +17°7 | —13°5 | —36°5 
—_e———e—ee—_—ea———— SS OO | | | 
3. Zymotic diseases .........) + 41:7 | +38°0 | +167 | — 17:2 | — 56°3 
4, Disease of the nervous 
system and digestive +19°8 | + 22:2 | +16°7| — 4:8 | ~38°9 
ESE ch alas. oso serece 
5. Sudden and external : : ; n 
CAUSES ....ecccceee bea ei pe AO aha AON) 29 OG bE ool 
6. Other diseases ............ +321! + 3°7| — 1:8] — 0-9 | —31°2 
| 7. All causes ...... ssseeseseee] + 19°9 | +23°1 | + 9°6 | — 10-2 | — 27°8 
_ In viewing the preceding abstract, it is right to explain that the results in the first 
line are of the most importance, as in the army phthisis pulmonalis constitutes about 
80 per cent. of the deaths from diseases of the lungs, and about 50 per cent. of the 
deaths from all causes. This being explained, the results in Abstract D are, as bear- 
ing on the applicability of the hypothesis in question on the causes of the mortality 
in the army, even more remarkable than those in Abstract C. In every instance, 
pos the differences between the mortality per cent. in the respective districts 
