Index. 813 



PAGE. 



Bulletin 233, two new shade-tree pests 119 



Bulletin 234, bronze birch borer; insect destroying white birch. ... 137, 139 



Bulletin 235, co-operative spraying experiments 155 



Bulletin 236, blight canker of apple trees 178 



Bulletin 237, alfalfa 219 



Bulletin 238, buckwheat 261, 265 



Bulletin 239, some diseases of beans 279, 283 



Bulletin 240, the influence of mushrooms on the growth of some plants.. 301 

 Bulletin 241, second report on the influence of fertilizers on the yield 



of timothy hay * 323, 325 



Buprestidse 139 



Burrill, T. J 183 



Butterflies 775, 778, 782 



Callosamia promethea 730 



Canning and preserving 679 



Caterpillar 734 



Cavanaugh, Asst. Prof. Geo. W 77 



Cecropia 725, 726, 727 



Cercospora apii 84 



Cercospora beticola 84 



Cercospora of celery blight 82 



Church, Gertrude S 664 



Clark, Chas. F 47, 323 



Coleophora limosipennela 120 



Coleoptera . . 139 



Collar rot 188, 190 



Colletotrichum lindemuthianum 288 



Collosamia angulifera 732 



Colorado pototo beetle larvae 347 



Colorado potato beetle 349 



Completoria complens 82 



Compton tortoise 785 



Comstock, Prof. J. H 73 



Comstock, Anna Botsford. .701, 709, 713, 717, 721, 739, 743, 747, 751, 755 



763, 767, 769, 773, 775, 793, 797, 799, 807 



Conotrachelus crataegi 165 



Co-operation with organizations 34 



Co-operative experiments 1906 254 



agronomy or field crops (J. L. Stone) 255 



animal husbandry (H. H. Wing) 253 



dairy industry (R. A. Pearson) 259 



entomology (M. V. Slingerland) 257 



horticulture (John Craig) 257 



plant diseases (H. H. Whetzel) 259 



plant selection and breeding (J. W. Gilmore) 256 



poultry husbandry (J. E. Eice) 258' 



Co-operative spraying experiments, bull. 235 155 



Coprinus atramentarius . . . . , 83 



