INDEX 



161 



Eclectosome theory, 14, 143. 

 Ectoblast, 122, 125. 

 Ectoderm, 73. 

 Egg, 74, 122, 125. 



capsule, 76, 81. 



formation, 74. 



infection, 80. 

 Electrical potential, 59. 

 Electricity, 145. 

 Elysia viridis, 78. 

 Encystment, 70. 

 Endocrine disturbances, 129. 

 Endocrinology, 139. 

 Engler, 55. 

 Entoblast, 122. 

 Entoderm, 72. 

 Environment, 134. 

 Enzyme, 65, 81, 105, 139. 



amylase, 105. 



blood clotting, 106. 



cellulase, 106. 



chemical composition of, 105. 



cytase, 106. 



diastase, 105. 



fat splitting, 106. 



in animals, 105. 

 chromosomes, 129. 

 food digestion, 105. 

 pancreas, 105. 

 plants, 105. 

 rennet, 106. 

 salivary glands, 105. 



lipase, 106. 



pepsin, 106. 



proteases, 106. 



ptyalin, 105. 



thrombose, 106. 



trypsin, 106. 



zymogen, 107. 

 Epidemics, 143. 

 Epidemiology, 144. 

 Epidermal cell secretion, 21. 

 Epidermal fibrils, 14. 

 Epididymis, 45. 

 Epstein, 140. 



Ergastoplasm, 44. 

 Ernst, 55. 

 Escherich, 81. 

 Euglena viridis, 108, 141. 

 Euziere, 21. 

 Evolution, 1, 131. 



design in, 146. 



direction of, 4. 



early stages, 134. 



factors of, 2, 3. 



inorganic, 6. 



mechanism of, 119. 



nature of, 3, 147. 



of bacteria, 137. 



of higher organisms, 139. 



organic, 5, 6, 120. 



progressive, 3, 5, 147. 

 Excretory system, 76, 93. 



Factors, 



cardinal, 6, 146. 



chemical, 6, 110, 113. 



dominant, 120. 



environmental, 110, 138. 



extrinsic, 6, 70, 71, 139, 140, 144. 



fundamental, 6. 



in bacterial behavior, 144. 



intrinsic, 139, 140. 



Mendelian, 120. 



recessive, 120. 



secondary, 138. 



subsidiary, 3. 



thermal, 113, 145. 



unknown, 3, 147. 

 Falk, 144. 

 Farmer, 64. 

 Fat, 21, 39, 79. 



solvents, 16. 



bodies, 79. 

 Faure-Fremiet, 11, 15, 19, 22. 

 Favre, 13, 22. 

 Fertilization, 11, 58, 113. 

 Ferments, 81. 

 Fetus, 31. 



tissue planted, 35. 



