Two days in the week the London Fever Hospital is open to the friends of the patients, who often spend a considerable time in the wards, sometimes sitting on the beds of the sick; yet these visitors never take fever themselves, nor are they ever known to convey it by their clothes to persons out of the hospital. In like manner the persons employed to convey the clothes of the fever-patients from the wards of the hospital do not take fever, nor is there any evidence whatever that typhus fever is, or can be, propagated merely by the clothes; yet it is remarkable that the laundresses who wash the clothes, which often contain excrementitious matters from the patients, or from the dead, of an amount perceptible to the senses, rarely if ever escape fever. It is inferred, that in this case the poison is by the heat put in a state of vapour, which is inhaled, and being sufficient in quantity, produces the disease. Footnote 10: In the Appendix will be found further particulars and exemplifications of the facts, deducible from the mortuary registers, together with the returns from the several registration districts in the metropolis, of which the above is a summary. Footnote 11: Vide Appendix.—Paper on the Mortuary Returns. Footnote 12: Recently, April the 4th, at the Liverpool assizes, a woman named Eccles was convicted of the murder of one child, and was under the charge of poisoning two others, with arsenic. Immediately the murders were committed, it appeared she went to demand a stated allowance of burial money from the employers of the children. Footnote 13: Clarke _v._ Johnson, 11 Moore, 319. Footnote 14: Bligh’s 4th Parl. Reports, N. S. 194. Footnote 15: _Vide_ Appendix No. 12 for examples of undertakers’ ordinary bills for funerals of different classes. Footnote 16: _Vide_ Return in the Appendix. Footnote 17: _Vide_ Appendix. Footnote 18: _Vide_ General Report on the Sanitary Condition of the Population, p. 443 and p. 395, for proximate estimates of the chief structural expenses, _i. e._ main drains, house drains, annual supply of water, water tank, and water-closet, and means of cleansing, and also an exemplification of the practical rule for the distribution of the expense, so as to render it coincident to the benefit. Footnote 19: In all cases the mortuary registries of 1839 are referred to; but the data are varying, and are submitted, as they will be understood, only as proximate estimates. I have every reason to believe them to be on the whole below the truth. Footnote 20: A severe epidemic, by sweeping off the most susceptible cases, usually diminishes the proportionate mortality from that cause during the following year. Footnote 21: _Vide_ District Returns, Appendix. Footnote 22: