A Host-parasite Catalog of North American Tachinidae (Diptera)


Book Description

The Tachinidae are the most important of the dipterous families with entomophagous habits. Though often little noticed, these flies have an important role in controlling phytophagous Insecta.







Forestry Clubs for Young People


Book Description

This publication has been prepared primarily for the use of leaders of young people's forestry clubs. Its purpose is to suggest forestry activities suitable for young people and ways and means of carrying on those activities. Some are suitable only for clubs formed by boys and girls, living on farms or in smaller towns; others are more suitable for young people living in the larger cities.