1915.] PUBLIC DOCUMENT — No. 31. 61a 



commercial materials to follow has resulted in the collection of 

 several thousand records on this subject. 



The usual amount of care has been given to the collections, 

 in order to keep them in proper condition and protect them from 

 museum pests, and numerous additions, both of adults and to 

 various stages in the life history of many kinds, have been made. 



