
A Question of Identity
Were Flying Reptiles Merely Unfeathered Birds, or Birds Merely Feathered Reptiles?

A Question of Identity
Were Flying Reptiles Merely Unfeathered Birds, or Birds Merely Feathered Reptiles?

Return of the 17-Year Locust
What He is and How to Combat his Ravages

The Vampire Bat
A South American Species That Lives Entirely on the Blood of Other Animal

Ticks as Carriers of Animal Disease
Inferences Drawn from the Destruction of 500 Reptiles at the New York Zoological Garden During Several Years

The Instability of American Airplanes
Sources of the Defects That Have Killed Many Pilots Revealed by Experiments that Reduce Aerodynamics to the Elementals

The Celilo Canal

The New Los Anǵeles Water Works
A World's Object Lesson