68 STATE BOARD OF AGRICULTURE. 



order to add new material it was necessary that that part of the col- 

 lection be remounted on wooden blocks in accordance with the plan 

 adopted and well advanced some years ago. This is very careful and 

 tedious work when once done it is the most permanent method in use 

 in collections of this work. This work is still being carried forward 

 speedily. 



There is a large accummulation of material collected in Prof. Cook's 

 time and subsequently. Much of this has been brought together and 

 sorted out and everything carrying information or serving as a record 

 in any way, has been segregated out for permanent mounting, so far 

 as we have gone. Much remains to be done in this line. 



A large amount of material has been collected or bred and mounted 

 ready to interpolate in its proper place as soon as the liiain collection 

 is ready to receive it, the effort being to complete sets of the different 

 stages illustrating life histories. Such sets are most instructive and 

 few collections are supplied with good series of such material. 



As a separate collection many specimens have been collected and 

 mounted so as to safely handled. These are for use as hand specimens 

 to be passed around in class work. We are constantly adding to this 

 jset and find it one of the best aids at our command in the class room. 



It remains to extend our sincere thanks to Mr. E. J. Kraus who has 

 been mose efficient and helpful in carrying on the work of the depart- 

 ment, both in the laboratory instruction and in the work of rearing 

 and preparing specimens, and to Miss Catherine Koch for her pains- 

 taking care in mounting the specimens in the collection. 



Very respectfully submitted, 



R. H. PETTIT, 

 Professor of Entomology. 

 Agi'icultural College, Mich., June 30, 1907. 



