SEEING BY AID OF THE LENS. 



103 



WING OF GRASSHOPPER. 



tective shells and wondering why they 

 are so until care and troubles are forgot- 

 ten and the full benefit of being out of 

 doors realized. 



And there is still another advantage, 

 which is that observations can be made 

 within the natural habitat of our small 

 friends so that we may learn to always 

 distinguish them from our enemies. 

 And there are many of the latter which 

 we should learn to know in all stages 

 of their life cycles, so that wherever 

 met they may be exterminated. For ex- 

 ample, there is the gypsy moth, now such 



HOUSEFLY. 



an imminent danger in New England. 



In the plant kingdom many wonders 

 await us and progressing with the study 

 adds fascination to our walks in the 

 fields and woods. The means by which 

 seeds are 

 distributed, 

 the provis- 

 ion for 

 plant pro- 

 t e c t i o n , 



°' 1" O W i 11°" (Pocket Magnifiers in Vulcanite mount- 

 s' & ings; come in various stvles. Prices 



roots, bark, 20c. up) 



exquisite mosses, wonderful spores and 



FISH SCALES WITH MODERATE MAGNIFICATION. 

 Show "prongs" for attachment and grooves for lubricating fluid. 



