VI. IMPORTANT SOURCES OF INFORMA- 

 TION ON THE LIFE HISTORIES OF IN- 

 SECTS AND ALLIED INVERTEBRATES 



INSECTS are to-day one of the dominant forms of 

 life and are present in almost every large animal 

 association or habitat. They therefore form an 

 important element in a large number of ecological 

 studies. And although facts of ecological signifi- 

 cance have been accumulating for many years they 

 are so widely scattered that to find them when 

 needed is quite a serious problem. To aid in such 

 a search the following references are given. It 

 should be remembered that spiders, mites, and 

 myriapods are commonly included in entomological 

 literature and are therefore included in this list. 

 The list is not intended as a substitute for the more 

 elaborate sources such as the Zoological Record 

 and similar standard works to be found in large libra- 

 ries, but it includes publications that are more likely 

 to be within the grasp of teachers and students not 

 located at library centers. Many of these are public 

 documents, and even if out of print, can easily be 

 secured from second-hand dealers. 



A student who has access to large libraries will 

 find the following paper very valuable in suggestions 

 as to the methods of finding the literature on many 

 general zoological subjects. 



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