328 
INDEX. 
Thermal changes accompanying basic substitutions , on the, 21. 
Thyroid Gland, on the comparative anatomy of the, 295. I. Birds, ibid . 2. Reptiles, 296 
3. Fishes, 299. 
W. 
Water Battery, a description of an extensive series of the, 39. 
Wilson (Erasmus). Researches into the structure and development of a newlv discovered para 
sitic animalcule of the human skin — the Entozoon folliculorum, 305. 
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