ing of a frame over which gauze or muslin has been stretched. The food-plant on 

 which the caterpillar feeds is kept fresh in bottles or jars. It is important, after 

 the plants have been put into the jar of water, to stuff around the stems cotton or 

 soft paper, so that the caterpillars may not crawl down and, falling into the water, 

 drown themselves. The bottom of the box may be filled to the depth of four or 

 five inches with loam and covered with dead forest leaves. The loam should not 

 be allowed to dry out thoroughly, but should be kept somewhat moist, not wet. 

 A little sprinkling of water from time to time will suffice when done with care. 

 The caterpillars feed upon the food-plant, and finally undergo transformation in 

 the cage into the pupa, and eventually emerge as the butterfly or moth. The 

 breeding of lepidoptera in this way is a fascinating occupation for those who have 

 leisure to attend to it. For more minute instructions in reference to this matter 

 the reader is referred to "The Butterfly Book." The caterpillars and chrysalids 

 themselves may be preserved in little phials, in alcohol or in a solution of formal- 

 dehyde. The latter, however, is not to be recommended, because, although it 

 preserves colors better than alcohol, and does not tend to shrivel up the bodies, it 

 makes them stiff and difficult to handle and examine. The best way of preserving 

 caterpillars is to inflate them. Directions for doing this are contained in "The 

 Butterfly Book." 



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