STATE POMOLOttlCAL SOCIETY. 31 



they pass through, the different moults, the time, mode and cir- 

 cumstances of spinning their cocoons, the time they remain in 

 their several stages, and mark well the differences between the 

 sexes of the perfect insect, and will preserve samples of these in 

 all their stages for future comparison, he will have learned one of 

 the most valauble of lessons — how to observe. If he will carry as 

 many as possible of the common insects through the round of life, 

 he will have his eyes opened to wonders he never before dreamed 

 ot, and a spirit of inquiry will be awakened which will extend to 

 other things besides insects. In his work on insects he may 

 require assistance, and I can recommend no one book more highly 

 than " Harris' Insects Injurious to Vegetation." With this a 

 good beginning may be made in this work. If all the sons of 

 farmers would pursue this course, I should have no fears for the 

 subject of entomology in the future. 



