INDEX. 305 



PAGE 



Publications, Lists of xi 



Pyrus aphids 266 



Rhagoletis pomonella in blueberries 203 



Relationship and inbreeding coefficients 288 



Report of treasurer 297 



Raphanus raphanistrum, control 40 



Rhizoctonia disease of potatoes 193 



economic importance 213 



field studies' 203 



greenhouse experiments 208 



history 194 



in Maine 197 



preventive measures 215 



scab 97 



solani 193 



Rhopalosiphus lactucae 53 



Rosa, aphids infesting 268 



Rose aphids 253 



Rosy aphid of the apple. 267 



Rubus aphids • 269 



Russeting of apples 16 



Scab common, of potatoes 95 



Schizoneura lanigera 266 



ulmi (fodiens) 60 



Shank colors in fowls, histological basis 237 



methods of study 238 



of domestic fowl, external structure 239 



histology, corium 240 



epidermis 240 



pigment relations 243 



pigmentation .' 241 



Silver scurf of .potatoes 96 



Sinapis avensis, control 40 



Soluble sulphur compound, data 17 



for apple orchards 6 



Soy beans, conditions of growth 33 



fertilizing and culture 33 



for fodder, silage, and seed 32 



yield of green fodder 35 



Spiraea aphids 270 



Spondylocladium atrovirens 96 



Spongospora subterranea 89 



Spraying experiments : 2 



for mustard 39 



weedS' 42 



injurious effects 2; 



3 



