[1090] Cross, 1819, u. i. p. 2.

[1091] Most of these were brought to light by inquiries upon the alleged failures of cowpox to avert the epidemic. The serial numbers of the Medical Observer contain frequent references to them.

[1092] Letter to Joshua Dixon, in Memoirs, III. 368.

[1093] Bateman, Edin. Med. Surg. Journ. VIII. 515.

[1094] C. Stuart, ibid. VIII. 380.

[1095] Rigby, ibid. X. 120.

[1096] Joshua Dixon, The Literary Life of William Brownrigg, M.D. Whitehaven, 1801, pp. 238-9.

[1097] Haygarth says: “With us in Chester, smallpox is seldom heard of except in the bills of mortality. There its devastation appears dreadful indeed.” Sketch of a Plan, &c. 1793, p. 491.

[1098] Barker and Cheyne, Account of the Fever, &c. 2 vols. 1821. I. 92.

[1099] Francis Rogan, M.D., Obs. on the Condition of the Middle and Lower Classes in the North of Ireland. Lond. 1819, p. 17. He proceeds to say:—“The numerous cases, which came to my knowledge, of children in the neighbouring towns who had taken smallpox, after having been vaccinated by medical practitioners of high respectability, led me to pay particular attention to those whom I myself inoculated [with cowpox]; and, although they were numerous both in private practice and at the Dispensary, not one instance occurred among them.” It comes out however that he did not keep them long in sight; he saw them on the 7th day after vaccination, and again on the 11th; and as they were meanwhile almost daily exposed to contagion, without catching it, he concluded that his own cases never would do so.