Index. 



231 



INDEX TO REPORTS FOR THE YEARS 1916 TO 1920, AND TO 

 BULLETINS 246 TO 295 INCLUSIVE. 



In each reference the 



first two figures indicate the year, 

 page 207 of the report for 1920. 



Thus, '20, 237, indicates 



Abnormal germination of grass 



fruits '20. 237 



Abrotana , elemataria '17, 48 



genus '17, 48 



Abstracts '20, 



Abstracts of papers 1 'IS, 229 



Abstracts of papers not pub- 

 lished in bulletins '16, 345 



Abstracts of papers published 



in 1919 '19, 2a5 



Acid Phosphate for oats.^ '16, 4 



Acocepha'.us albifrons, control.. '16, 72 



description '16, 70 



habits '16, 69 



life history '16, 71 



striatus. control '16, 76 



description of nymphs '16, 74 



distribution '16, 73 



Age of cows and maximum rni.k 



production '19, 253 



Alcohol, Effect upon germ celis 



'17, 297, 299, 330 



Alder flsabeetle 18, 153 



the biology of '17, 249 



Alder spittle insect '16, 283 



Allograpta obliqua '16, 234 



Altica bimarginata, The biology 



of '17, 249 



Altica, biology of Maine species '18, 149 



corni, bio.ogieal hittory '18, 162 



control '18, 173 



description of the stages '18, 156 



distribution '18, 164 



food plants '18, 170 



natural enemies '18, 173 



seasonal history in Maine '18, 163 



definition of terms used '18, 153 



key to Maine species '18. 154 



new species '18, 153 



rosae, biological history '18, 176 



control '18, 182 



description of the stages '18, 174 



distribution '18, 177 



food plants '18, 181 



natural enemies '18. 182 



seasonal history in Maine '18, 177 



species discussed '18, 153 



torquata, biological hietory. '18, 196 



control '18. 202 



descripti n of the stages ''18, 194 



distribution '18, 197 



food plants '18, 231 



natural enemies '18, 202 



seasonal history in Maine '18, 196 



Altica ulmi, biological history '18, 184 



control '18, 193 



description of the stages... '18, 182 



distribution '18, 186 



food plants '18. 192 



natural enemies '18 193 



seasonal hLtory in Maine... '18, 18 > 



Ancestral ana'ysis of Jersey sires '19. 143 



Angulated froghopper '16 277 



Ania, Genus '17, 41 



limbata J. 17, 42 



Animal Husbandry Investiga- 

 tions, Report of progress 



'17, 121; '18, 205; '19, 249 



Announcements '18 vii 



Apatslodes, Genus '17, 61 



torrefacta '17, 62 



Aphid ecology, problems '16, 63 



Aphid of choke cherry and grain '17, 293 

 Aphididae, food plant catalogue 



'18, 47; '19, 219 



Aphids, eaetern '18, 45 



Aphids, Eastern, New or little 



known '17, 319 



Aphids of the rose '19, 205 



Aphis avena '16, 63 



Aphroph >ra parallela '16,279,287 



quadrinotata '16, 287 



saratogensis '16, 287 



Apiodes, Genus '17, 40 



mimosaria '17, 40 



Apple, causes of self sterility 



and cross sterility '20, 81 



cros fertility and cross ster- 

 ility '23, 69 



effects of self and cross fer- 

 tilization on size '20, 77 



self sterility and crjss ster- 

 ility '20, 61 



and self fertility '20. 63 



Apple leaf chlorosis '16, 186 



troubles new to Maine.. '16, 186 

 maggot, control by poisoned 



bait spray '16, 149 



dates of emergence of 



flies • '16, 153 



poisoned bait application '16, 158 



effectiveness '16, 160 



formula '16, 158 



Apple orchard, sod vs. cultivation '18, 13 



scab, development '16, 172 



fungus, winter survival on 



twigs '16, 191 



silver leaf '16, 189 



spraying, composition of ma- 

 terials used '18, 111 



discussion of results '18, 116 



effect on foliage and 



fruit '18, 104, 113 



set of fruit '18, 126 



efficiency of application.. '18, 119 



experiments '18. 101 



fruit russeting '18, 116 



summary of results.. '18, 107, 115 

 time and manner of ap- 

 plication '18, 103. 112 



treatment of plots.. '18, 102, 108 



weather conditions... '18, 103, 112 



spraying at Highmoor Farm '16, 81 



blossom bud application. '16, 87 



discussion of results '16, 85 



effect on foliage and fruit '16. 172 



experiments '16, 169 



injury '16. 173 



methods used '16, 84 



object of experiments '16, 83 



