Structure and Classification of Zoophytes (Classic Reprint)

Classification of Insects (Classic Reprint)

The Classification of Insects From Embryological Data, Vol. 2 (Classic Reprint)

The Structure and Classification of Birds (Classic Reprint)

The Thorax of Insects and the Articulation of the Wings (Classic Reprint)

Personality of Insects (Classic Reprint)

Galls and Insects Producing Them (Classic Reprint)