j04 MAINE AGRICULTURAL EXPERIMENT STATION. I914 



PAGE 



Oat aphid 256 



breeding studies, character of soil 140 



harvesting 145 



plots 139 



preparation of the land 142 



records 146 



shape of plots 144 



treatment of seed 144 



' varieties tested 148 



variety tests 137 



Oats, average yield of grain 174 



early varieties •. . 152 



medium early varieties 152 



late varieties 153 



results of variety tests 158 



variation in weight of bushel 185 



yield of straw 182 



Organization of Station 11 



Oviduct of the domestic fowl, physiological effects of ligation, 



section or removal of 285 



Ovulation in the fowl, effect of corpus luteum substance upon.. 286 



Papers, abstracts of 281 



Phorodon humuli 264 



Phosphates for grass lands, cost 2"] 



top dressing 25 



Physiological effects of ligation, section or removal of the ovi- 

 duct in the domestic fowl 285 



Physiological observations regarding plumage patterns 281 



Plantlice or aphids of Maine 49 



Plum and hop aphid 264 



aphid 262 



thistle aphid 263 



Plumage patterns, physiological observations regarding 281 



Potato scab, common 95 



Potatoes effect of iron sulphate spraying 43 



powdery scab 89 



Rhizoctonia disease 193 



ridge vs. level culture 28 



seed disinfection 102 



silver scurf 96 



Powdery scab, cause of disease 92 



economic importance 99 



effect upon the host 93 



history and distribution 89 



preventive measures 100 



Prociphilus corrugatans 253 



Prunus aphids 258, 2^2 



