30 ANNUAL REPORT OF THE 



The biological series of Myrmeleonidae, Hemerobridas, and Phry- 

 ganidae have been rearranged. 



A large part of the alcoholic material has been assorted and 

 arranged. 



Considerable time has been given to searching out and properly 

 labelling the types among the Odonata. The department is espe- 

 cially rich in these types, but they are indicated in many ways and 

 in various places. As found these types are marked with a red 

 label bearing the legend Type, and a citation of the place of 

 original description is added. 



