The Butterflies of the Eastern United States and Canada - Vol. 3 is an unchanged, high-quality re...

Synopsis of the Families and Genera of North American Diptera - Exclusive of the genera of the Ne...

The Manual of North American Diptera, written by Samuel Wendell Williston and published in 1908, ...

This scarce antiquarian book is a facsimile reprint of the original. Due to its age, it may conta...

On the Diptera of St. Vincent - West Indies is an unchanged, high-quality reprint of the original...

Dive into the mesmerizing world of ancient aquatic giants with 'Water Reptiles of the Past and Pr...

Delve into the fascinating world of 'Water Reptiles of the Past and Present' by Samuel Wendell Wi...

This work has been selected by scholars as being culturally important, and is part of the knowled...

This work has been selected by scholars as being culturally important, and is part of the knowled...

This work has been selected by scholars as being culturally important and is part of the knowledg...

Manual of the Families and Genera of the North American Diptera [microform]

This work has been selected by scholars as being culturally important and is part of the knowledg...

This work has been selected by scholars as being culturally important and is part of the knowledg...

Contribution to a Monograph of the North American Syrphidae [microform]

Bibliography of North American Dipterology, 1878-1895 [microform]

On the North American Asilidae (Dasypogoninae, Laphrinae), With a New Genus of Syrphidae [microform]

Synopsis of the Families and Genera of North American Diptera [microform]: Exclusive of the Gener...

The North American Species of Conops [microform]

Manual of North American Diptera

Manual of North American Diptera

North American Plesiosaurs

This work has been selected by scholars as being culturally important, and is part of the knowled...

The Osteology of the Reptiles

The Osteology of the Reptiles

This book presents the findings of a pioneering scientific expedition that uncovered a treasure t...

This seminal work on syrphid flies, also known as hoverflies, is a must-read for anyone intereste...

Discover the biodiversity of North America through the study of syrphid flies in this comprehensi...

Discover the biodiversity of North America through the study of syrphid flies in this comprehensi...

This seminal work on syrphid flies, also known as hoverflies, is a must-read for anyone intereste...

This book presents the findings of a pioneering scientific expedition that uncovered a treasure t...

Delve into the fascinating world of 'Water Reptiles of the Past and Present' by Samuel Wendell Wi...

'Water Reptiles of the Past and Present' by Samuel Wendell Williston offers a comprehensive overv...

'Water Reptiles of the Past and Present' by Samuel Wendell Williston offers a comprehensive overv...