CONTENTS. 



PACE 

 ii 



Organization of the Station 



Announcements vii 



New Mineral Fertilizer (Bulletin 209) i 



Spruce Bud Worm (Bulletin 210) 13 



Two Spruce Leaf Miners (Bulletin 210) 32 



Potato Flea-Beetle (Bulletin 211) 2il 



Orchard Spraying Experiments in 1912 (Bulletin 212) 57 



Aphid Pests of the Willow (Bulletin 213) 'j-i 



Biology of Poultry Keeping (Bulletin 214) loi 



Measurement of the Intensity of Inbreeding (Bulletin 215) ... 123 



Poultry Notes 1911-1913 (Bulletin 216) 141 



Woolly Aphid of the Apple (Bulletin 217) 173 



Tables for Calculating coefficients of InlDreeding (Bulletin 218) 192 

 Comparative Studies of Certain Disease Producing species of 



Fusarium (Bulletin ^19) 203 



Woolly Aphid of the Elm (Bulletin 220) 259 



Constants for Normal Variation in Fat Content of Mixed Milk 



( Bulletin 221 ) 299 



Pedigree System for Use in Breeding Guinea-Pigs and Rabbits 



(Bulletin 221) 306 



Ability of Chickens to Digest Small Pieces of Aluminum (Bul- 

 letin 221) 314 



Meterology (Bulletin 222) 319 



Report of the Treasurer (Bulletin 222) 321 



Index (Bulletin 222) 322 



