I'm glad to see the old classic is still around, and electronically, too! I guess I'm not it's only friend. Funny, last year I googled it and all I found was a couple of used copies on Amazon.

A lot of these old books are treasures of information, stuff modern editors don't think is important or useful any more, and modern researchers have never really mastered. This "field guide" has material and is written to a level of detail found today only on professional monographs, all conveniently gathered in one place and edited by the Curator of Invertebrate Zoology at the NY Museum of Natural History.

Thanks for looking this up for me.