[99] COLLECTING AND PRESERVING INSECTS RILEY. 



and satisfactory in this respect tliat I have employed them for the bulk 

 of the collection iu the National Museum. These boxes (Fig. 117) are 

 constructed as follows : 



Fig. 117.— The Schmidt, folding insect box, opened and showing arrangement of insects (original). 



They are of white pine, shellacked and varnished, the bottom and 

 top double and crossgrained, to prevent warping, and projecting slightly 

 at all sides except the hinged back. They are 13 by 8^ inches outside 

 measurement. The inside measurement is llf by 7. The sides, back, 

 and front are five- sixteenths of an inch thick, with a machine joint, 

 which is neat and very secure. The boxes are 2f inches in outside 

 depth, unequally divided, the lower portion 1^ inches outside depth, 

 lined inside with a thin whitewood strip, projecting three fourths of an 



