John McCosh,
Advice to Officers in India — Chapter 11
(1856)
“ I will not pretend to say, which is the first cause of Cholera, nor do I think we shall arrive at that knowledge till the analysis of the atmosphere is carried to infinitely greater perfection than it is at present; till we are able to separate the principles of small-pox, plague, and intermittent fever from the air we breathe, and bottle them up as we do oxygen, nitrogen, and carbonic acid gas. I consider cholera essentially a disease of secretion, of immoderate secretion of serum from the skin and the intestines. ”
