[261] Aikin, Phil. Trans. LXIV. 473.
[262] John Aikin, M.D., The Country from 30 to 40 miles round Manchester. Lond. 1795, p. 584.
[263] John Ferriar, M.D., Medical Histories and Reflections. 4 vols., 1810-13, I. 172.
[264] Ferriar, I. 261.
[265] Ibid. I. 234.
[266] Ibid. II. 213-20.
[267] Ibid. I. 153-6; and II. 57.
[268] Ferriar, I. 166-8.
[269] This is perhaps the first numerical evidence of the slight fatality of typhus in children. A more elaborate proof of the same was given long after by Geary for Limerick. An early age-table for Whitehaven is given under Smallpox, infra.
[270] David Campbell, M.D., Observations on the Typhus or Low Contagious Fever. Lancaster, 1785.