OR, MANUAI, OF TH« APlARY. 6d 



by inserting a needle for half its length into a wooden pen- 

 holder, leaving the point projecting for three-fourths of an 

 inch. With one of these in each hand commence operations. 

 The head may be either side up. Much may be learned in 

 dissecting large insects, like our largest locusts, even with no 



Antenna of Bee much magnified. — Original. 



s Scape. 



/ Flagellum. 



i Tracheae. 

 71 Nerves. 



glass ; but in all cases, and especially in small insects, a good 

 lens will be of great value. The best lens now in the market 

 is the Coddington lens, mounted in German silver. These are 

 imported from England. They can be procured of any optician, 

 and cost only $1.50. These lenses can be mounted in a con- 

 venient stand (Fig. 17), which may be made in twenty minutes. 

 I think one of these more valuable than a large compound 

 microscope, which costs many times as much. Were I obliged 

 to part with either, the latter would go. 



I require my students to do a great deal of dissecting, 

 which they enjoy very much, and find very valuable. I would 

 much rather that my boy would become interested in such 

 study than to have him possessor of infinite gold rings, or even 

 a huge gold watch with a tremendous charm. Let such pleas- 

 ing recreation gain the attention of our boys, and they will 



