772 ; General Notes. ` [Aug i 
’ 
the vials may be obtained.— F. H. Comstock. 
sity, but it is with Whitall, Tatum & Co., New York, of whoa 
Synopsis of the Hymenoptera of America North of Mexico 
—It is with much pleasure that we call attention toa work by 
Mr. E. T. Cresson, which bears the above title, and the first pat 
of which has just been published by the American Entomolog: 
cal Society. a 
he study of the Hymenoptera has been much neglected in 
this country, notwithstanding the great extent of the order, the 
wide range of variation in structure presented by it, and the fact 
Coleoptera of our Fauna. For, as stated by Cresson, © 
larger fami- 
lies has been very imperfectly studied, and our knowledge of tiè | 
be 
approximately complete.” But this work will do much by w 
attraction of attention to the order to hasten the day W a 
shall have a complete classification. And it adds an order to the ] 
_ Small list of groups which are available for study by other Hi 
Specialists, sie | 
The part published consists chiefly of analytical keys gel 
g M n of these 
Westwood, Thomson, Taschenberg, Norton, Marsháll, 
Mayr, Saunders, Howard, Cameron, Ashmead, and others. 
index. It is expected that the volume will consist of abo 
pages. 
the described species and bibliography, as well as 4 ~a 5 
, a 
preparati for Preserving Larvæ.—The followin formula for 
M a ore fluid for the preservation of late is gn 
r. Henri Trois (Atti R. Istit. Veneto, (6) tomo iii) i 
Common salt o ka cea 
wa 3 . aia A 
Corrosive sublimate . . .  .. centigh 18. 
Boiling water . litres $ a 
