"Xenogenetic" Quotes from Famous Books
... to me that this great problem will have to be solved for each zymotic disease separately, for analogy cuts two ways. I have dwelt upon the analogy of pathological modification, which is in favour of the xenogenetic origin of microzymes; but I must now speak of the equally strong analogies in favour of the origin of such pestiferous particles by the ordinary process of the ... — Discourses - Biological and Geological Essays • Thomas H. Huxley |