122 Lessons in Zoology. 



The three simple eyes (Fig. 3, oc) do not show on alcoholic epeo- 

 imens nolesa they are allowed to dry, bat are prominent on the 

 liviDg insect. 



The sting is the egg-layer changed into a powerful 

 weapon. 



This leeaon shonld be given in snmmer or early antnmn, that the 

 best part of it may be the observation of the living insect. We can 

 follow single bees and see with what persistent industry they try all 

 the flowers of one kind, pacing not the slightest heed to any others, 

 bnt so intent upon their work that it is easy to make them prison- 

 ers when once the sncking-tnbe is bnried in a flower. Not the most 

 brilliant bntteronp can entice them if it is clover-honey that they 

 are in search of. It has been proved beyond a donbt that bees ean 

 distingnish colors, and Sir John Lnbbock decides, as the reanit of 

 his experiments, that their favorite is blue. 



Lesson II. 



Some honey and a piece of the comb consisting of worker cells, 

 drone cells, and a single royal cell ; a qneen bee and a drone, each 

 in its vial of alcohol, and a few of the little worm-like larvae in an- 

 other vial, — these constitute a perfect equipment for our second 

 lesson on the bee. By making arrangements with a bee-keeper 

 some months in advance, one may hope to secure all these, if she is 

 fortunate. 



Fig. 1. 



Many insects make homes for themselves or for their 

 young. Caterpillars roll up leaves ; the young clothes-moth 

 hides itself in a case of fibers from our softest woolen 



