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insects frequently emerge from the same gall. These are first of all 

 the] gall-maker. Then what are known as " guests " or " inquilines," 

 which do not make the galls, but which live in and upon them after 

 they are formed, and lastly there are various kinds of parasites which 

 prey upon the gall-makers and their guests. Trees and plants which 

 will always supply the collector with material for study are the oaks, 

 the roses, the various willows, and several kinds of composite plants as 

 Solidago, Aster and Lactuca. Besides the galls which may be found on 

 the stems during the winter, there are many more which are formed on 

 the leaves, which must be collected during the summer. 



A good deal of work was done last season in breeding insects, both 

 from the egg and from larvae and pupae collected in the field. This is 

 without doubt one of the most useful and absorbing branches of En- 

 tomology. Successful remedies for injurious species can only be 

 arrived at by carefully working out their life histories, so that 

 the stage in which they may be most advantageously attacked 

 may be discovered. In order that this imformation may be com- 

 plete it is necessary to breed the insects from the egg to ma- 

 turity. The eggs of many kinds are readily obtained and easily 

 reared. The leaders are of the opinion that if some of our mem 

 bers, who have never given any attention to the study of insects would 

 only collect a single species of the many beautiful butterflies which ap- 

 pear early in the Spring, confine it over its food-plant until it laid its 

 eggs, and then watch the caterpillars through their different stages till 

 they changed to chrysalids, and then again come forth as the perfect 

 butterflies, that they would flnd so much pleasure in the observations 

 that many more would join in the work of this branch. It will always 

 give them much pleasure to advise or instruct anyone who applies to 

 them, as to the best means of capturing, confining and treating the 

 female insects and the young caterpillars after they hatch, but the oper- 

 ation may be briefly described as follows. Having caught a female in- 

 sect of which the food-plant is known, confine it by means of a bag of 

 gauze tied over a small plant, or if the food-plant be a tree by drawing 

 the bag over a branqh, so that the insect may have fresh living leaves 

 to lay upon. The cage so formed should be so placed that the direct 

 rays of the sun cannot fall upon it. Eggs will generally be laid in 



