INDEX. 367 



Soil heterogenity in variety tests, corrections 345 



Sphaerophoria cylindrica 231 



Spittle insects 265 



Spray injury from poisoned bait 159 



Spraying experiments with apples 169 



Sprays, dormant, and scab control 90 



poisoned, for control of apple maggot 149 



Stereum purpureum 189 



Sulphate of ammonia vs. nitrate of soda 22 



Sulphur flour, fine, as a funigcide 94 



Syrphidae, aphidophagous species 222 



bibliography 261 



description of Maine species 224 



economic importance of the adults 219 



larva 212 



glossary of new and unusual terms 258 



habits of the larvae 206 



Homoptera attacked 223 



keys to known larave and pupae 256 



larvae as animal parasites 217 



crop pests 216 



predators 212 



scavengers 215 



life history 201 



long-tailed filth-inhabiting species 222 



of Maine, summary 193 



practical measures for protection 220 



short-tailed filth-inhabiting species 222 



species reared in the State 221 



Syritta pipiens 253 



Syrphus americanus 236 



nitens 242 



torvus 240 



Timothy crown leaf hopper 69 



Treasurer's report 359 



Tropidia quadrata 248 



Venturia pomi 191 



Weather observations 357 



