29S 



DISEASE IN PLANTS. 



Double ideals in selection, 168. 



Dracaena, 192. 



Drainage, 103. 



Drawing, 106, 180. 



Drip, 10.3. 



Drooping, 43, 179. 



Drops of water, 192. 



Dropsy, 228. 



Drought, 121, 183, 190, 191, 



245, 248, 249. 

 Dry-rot, 143, 237. 

 Ducks, 144. 

 Dutrochet, 7- 

 Dwarfing, 246, 249. 

 "Dying back," 190, 240, 242, 



243, 244. 



Earwigs, 164, 207. 

 Eau Celeste, 162. 

 Edclfdide, 230. 

 Eelworms, in, 248. 

 Effects of environment, 262. 

 Eggs of insects, 187. 

 Elaborated sap, 94. 

 Elm, 218, 224, 225, 233, 260. 

 Enipusa, 163. 



Endemic diseases, 153, 160, 166. 

 Endive, 180.^ 

 Endophytes, 130. 

 Endophytic algae, 128. 

 Endophytic fungi, 193. 

 Energy in plants, 15, 25, 287. 

 Engelmann, 20, 27. 

 Entyloma, 187. 

 Enzymes, 10, 130, 132, 136. 

 Epichloe, 218. 



Epicormic shoots, 224, 257, 260. 

 Epidemics, 108, 109, 113, 115, 

 142, 153, 160, 163, 166. 



Epiphytes, 113, 130, 135, 137. 

 Epiphytic algae, 188. 

 Epiphytic fungi, i6r, 193, 232. 

 Equiselum, 113. 

 Ergot, 131, 142, 144. 

 Erinnmi, 88, 212, 214, 215. 

 Erosions, 204, 207. 

 Erysipheae, 135, 142, 161, 187, 



268. 

 Essentials of fertilisation, 69. 

 Estimates of loss, 146. 

 Etiolation, 106, 179, 180, 229. 

 Euphorbia, 116, 134, 247, 266. 

 Excavations, 204. 

 Excess of food, 229. 

 Excess of minerals, 102. 

 Excess of water, 100. 

 Excessive growth, 246. 

 Excessive nutrition, 250. 

 Excrescences, 114, 212, 222. 

 Excreta, 45, 130, 133. 

 Exobasidiuni , 128, 218. 

 Exoasciis, 116, 128, 188, 2o8r 



214, 2i8, 225, 247, 253. 

 Expense of materials, 161. 

 Experiments necessary, 168. 

 Exposure of roots, 179, 184. 

 External causes of disease, 99. 

 Extinction of species, 91. 

 Exudations, 227. 

 Exudation under pressure, 51. 



Factors of an epidemic, 149, 165, 

 Falling of fruit, 206. 

 Falling leaves, 123. 

 False chlorosis, 181. 

 False etiolation, 180. 

 Farftigitim, 188. 

 Fasciations, 230, 246, 251. 



