62 NEW YORK STATE MUSEUM 



scopic slides showing the minute structures of the different species, 

 and also by over 400 photomicrographs made from these mounts. 

 This mounted and photographed material constitutes a permanent 

 collection which will be of inestimable value in future studies of 

 this economically important and extremely interesting group. 



Many specimens have been added to the general collection, 

 particularly in the Hymenoptera and Diptera, and special progress 

 has been made in classifying these important families. The exhibit 

 collection has received a number of valuable additions and in all of 

 our collecting, the needs along this line have been recognized. 

 The exchange system inaugurated in 1903, has been continued 

 with mutually satisfactory results, a most interesting collection 

 of aquatic larvae being received from Dr F. Meinert of Copen- 

 hagen, Denmark, and a valuable series of Coccidae from Mr J. G. 

 Sanders of the Ohio State University, Columbus O. Other ex- 

 changes of minor importance have beeii arranged and more are 

 contemplated. The office supervised the preparation of a collec- 

 tion of insects which was exhibited at the Louisiana Purchase 

 Exposition, by the Forest, Fish and Game Commission. It com- 

 prised about 250 species, the life history and habits of 140 being 

 represented in greater or less detail. This collection attracted 

 considerable attention and was the object of very favorable com- 

 ments. 



Nursery certificates. Owing to the continued reluctance of the 

 Virginia authorities to accept nursery inspection certificates not 

 indorsed by an official entomologist, we have continued to show 

 our approval of this work by indorsing certificates issued by the 

 commissioner of agriculture, whenever the same was requested. 

 The following is a list of firms to whom these nursery certificates 

 were issued in the summer and fall of 1904: Allen L. Wood, 

 Perry Nursery Co., Herrick Seed Co., First National Nurseries, 

 Brown Bros. Co., T. W. Bowman & Son, Chase Bros. Co., Western 

 New York Nursery Co., Irving Rouse, Ellwanger & Barry, H. S. 

 Taylor & Co., Graham Nursery Co., Allen Nursery Co., W. H. 

 Salten, Green's Nursery Co. and Brown Bros., all of Rochester; 

 T. S. Hubbard & Co., George S. Josselyn, Wheelock & Clark, F. E. 

 Schifferli, Foster & Griffith, Lewis Roesch, all of Fredonia; Bry- 

 ant Bros., G. A. Sweet, Stark Bros., Sheerin's Wholesale Nursery 

 Co., The Rogers Nurseries, all of Dansville; Jackson & Perkins 

 Co., Knight & Bostwick, both of Newark; R. G. Chase Co., G. B. 

 Willard, Sears, Henry & Co., W. & T. Smith Co., Reliance Nursery 



