266 CONSIDERATIONS FROM STUDY OF INSECTS 



men who are interested in this kind of natural science may have 

 opportunity to learn and to help. 



The good done by these means directly and indirectly is very 

 great. Bulletins are published by the various state stations 

 and by the Department of Agriculture, most of which may be 

 obtained free. The most interesting of these from the high 

 school standpoint are the Farmers' Bulletins, issued by the De- 

 partment of Agriculture, and the Nature Study pamphlets issued by 

 the Cornell University in New York state. 



REFERENCE BOOKS 

 ELEMENTARY 



Sharpe, A Laboratory Manual for the Solution of Problems in Biology. American 

 Book Company. 



Craigin, Our Insect Friends and Foes. G. P. Putnam's Sons. 



Crary, Insects and their Near Relatives and Birds. J. Blakiston's Son and Com- 

 pany. 



Dahlgren, The Malarial Mosquito. Guide Leaflet 27, American Museum of Natural 

 History. 



Davison, Practical Zoology. American Book Company. 



Dickinson, Moths and Butterflies. Henry Holt and Company. 



Doane, Insects and Disease. Henry Holt and Company. 



Farmers' Bulletins, 45, 59, 70, 78, 99, 155. 



Howard, L. O., Insects as Carriers of Disease. Year Book, U.S. Department of 

 Agriculture, 1902. 



Howard, L. O., Mosquitoes. McClure, Phillips, and Company. 



Lubbock, Bees, Ants, and Wasps. D. Appleton and Company. 



ADVANCED 



Bulletins of Division of Entomology, 1, 4, 5, 12, 16, 19, 23, 33, 34, 35, 36, 47, 48, 51. 

 Folsom, Entomology with Reference to its Biological and Economic Aspects. P. Blaki- 

 ston's Son and Company. 



Sanderson, E. D., Insects injurious to Staple Crops. John Wiley and Sons. 

 Wheeler, Ants. The Macmillan Company. 



