202 



INDEX 



Cauliflower, 127. 



Cell-body, 28, 29. 



Cell division, 30. 



Cell-nucleus, 28, 29. 



Cell-sap, 30. 



Cells of plants, 27, 29, Figs. 6, 7. 



definition, 30. 



osmosis in, 34. 

 Cellulose, 29. 

 Cell-wall, 28, 29. 

 Central cylinder of roots, 39. 

 Charts, price-list of, 175-176. 

 Chemicals, price-list of, 176-177. 

 Cherries, 96. 

 Chestnut, fruits, Fig. 39. 



leaf, Fig. 20, B. 

 Chlorophyll, 23, 28, 51, 60, 62, Fig. 



22. 



Chlorophyll bands, 167, Fig. 85. 

 Chocolate, 129, Fig. 63. 

 Cider, 148. 

 Cilia, 140, Fig. 71. 

 Cinchona, 129. 

 Citranges, 122. 



Classification of plants, 154-170. 

 Clay, 110. 

 Coal, 133. 



Coal period, forests of, Fig. 65. 

 Coccus form of bacteria, Fig. 71, A. 

 Cocklebur, 93. 

 Cocoa, 129, Fig. 63. 

 Coffee, 129, Fig. 61. 

 Colony of bacteria, 142, Fig. 71, A. 

 Compound, definition of, 12. 

 Compound leaf, 56. 

 Conditions essential for plant growth, 



108-114. 



Conjugation in spirogyra, 168. 

 Conservation of forests, 138. 

 Consumption, due to bacteria, 145. 

 Corn, cross-pollination, 85. 

 Corn grain, 95, 128. 

 Corn grains, 101. 



nutrients stored in, 104. 



use of endosperm of, 104. 

 Corn production in U. S., 119. 

 Corn seedling, 100. 

 Corn stalk, 47, 49, 50. 

 Corn "tassels," 87, Fig. 33. 



Corn ears, 88. 



silk, 88. 



Corolla, 71, 79, 88. 

 Cortex of roots, 39. 

 Cotton, 130-132. 

 Cotyledon, 98, 101. 

 Crops, valuable, of N. Y. State, 122, 



Fig. 58. 

 Crossing, artificial, of related species, 



120. 

 Cross-pollination, 79. 



by bumblebees, 81. 



in pansy, 82-84. 



by insects, 86. 



by wind, 87. 

 Cucumber fruit, 90. 

 Cultivation of soil, 113. 



Dairy products of N. Y. State, 123. 

 Dandelion plant, Fig. 55. 

 Dangers to forests, 137. 

 Darwin, Charles, 82, 118, Fig. 54. 

 Deciduous trees and shrubs, 158. 

 Decomposition, result of action of 



bacteria, 140. 

 Diastase, 36. 

 Dicotyledons, 160, 170. 

 Digestion, definition of, 37. 



of starch, 37. 

 Digestive ferments, 38. 

 Diphtheria, due to bacteria, 145. 

 Directions for note-books, 185-186. 

 Disease-producing bacteria, 145. 

 Dispersal of seeds, 91. 

 Distillation, 147. 

 Distilled liquors, 148. 

 Division of cell, 30. 

 Drainage, 111, 114. 

 Drawings, in laboratory, 181, Figs. 



90, 91. 

 Drugs, 130. 

 Dry fruits, 96. 

 Ducts, 45, 50, 62, Fig. 14. 



Egg-cell, 77. 



Element, definition of, 12. 



Elm fruit, 92. 



Elodea, 25, 28. Fig. 5. 



Embryo, 77, 98, Fig. 29. 



