172 INDEX. 



PAGE 



Caries of the teeth 149 



k< agency of the soluble ferments in 164 



acid, or chemical theory of. 151 



" B. lactisin 160 



" color of 150, 166 



" denned 150 



" germ theory of 106 



u origin of acids supposed to cause 152 



widening of tubules in 160 



" vital theory of. 149 



Carter, Dr., of India 97 



Cells the relative power of. 114 



Cellular digestion in the higher animals 98 



Century the 19th 17 



Changes in the products of micro-organisms 134 



Chemical changes ia putrefaction Gradle 130 



Cohn's classification of micro-organisms 40 



Contagion amoeboid theory of. 57 



Beale's views of 57 



first notions of. 12 



modes of communication , 73 



origin of. 59 



not a fermentation 57 



Cotton as an air filter 28 



Cultures dry slide 66 



fluid employed by Pasteur 33 



inoculations made from pure 67 



" objections to flask 66 



D 



Diastase 92 



" effects of, on starch 92 



Decomposition agents of. 32 



Decompositions, contagions and miasms of the same class as the 



fermentations 38 



Denovo origin of life 35 



Difficulties of the germ theory 27, 38 



Discovery of the yeast plant 20 



Digestion absorptive and resorptive 82 



by the yeast plait 84 



by the germs of seeds 91 



by the germs of tubers 92 



by the higher plants 89 



by the micrococcus urea 89 



cellular, in the higher animals 98 



extraneous to the body 82 



example of without a stomach 84 



experiments by Sachs 90 



of blood clot 100 



" " ivory 105 



