E. H. Frothingham

The northern hardwood forest : its composition, growth, and management

E. H. Frothingham, 1915 .

Timber Growing and logging Practice in the southern Appalachian Region

Earl Hazeltine Frothingham, E. H. Frothingham, 1931 .

The eastern hemlock : Tsuga canadensis (Linn.) Carr. /

E. H. Frothingham, 1915 .