THB SULPHUR BUTTERFLY. 



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may be screwed on the window sill, the soil put in place, and 

 bottles of water or tin-cans of wet sand, with food-plants 

 in them suited to the captured insects, set on the soil. 

 A variety of insects may be observed, fed, and studied in this 

 observatory, where they will enjoy ideal conditions of light 

 and air. 



The "Puddle" Butterfly. — " What's the matter with your 

 hat, Charlie? How did you get the mud on your hair and 

 neck?" "Please, teacher, he was catching puddlers," said his 

 younger brother, using the schoolboy's name for the greenish- 

 yellow butterfly that hovers with its merry companions over 

 every little puddle along the road. 



That was the morning for the teacher to say " I wish you 

 would catch a few of these sulphur butterflies without hurting 

 them to put in our insectary." 



Male. Sulphur Butterfly. 



Female. 



Prepare to receive them by having clover plants trans- 

 planted into pots. When the willing boys bring in their 

 captives some of the latter will show a narrow dark band 

 around both pairs of wings. These are males, and they may 

 be allowed to escape. The others, having a wider, yellower, 

 more irregular and yellow-spotted margin on their front wings 

 are the females. Put these in the insectary along with the 

 living clover plants and announce the expectation that in two 

 or three days bright yellow eggs, standing on their ends on the 



