A Brief Account of Radio-activity A Brief Account of Radio-activity by Francis Preston Venable Download Read more
A Brief History of Element Discovery, Synthesis, and A… A Brief History of Element Discovery, Synthesis, and A… by Glen W. Watson Download Read more
A Critique of the Theory of Evolution A Critique of the Theory of Evolution by Thomas Hunt Morgan Download Read more
A Description of the Bar-and-Frame-Hive A Description of the Bar-and-Frame-Hive by W. Augustus Munn Download Read more
A Lecture on Physical Development, and its Relations t… A Lecture on Physical Development, and its Relations t… by S. R. Calthrop Download Read more
A Manual of Elementary Geology A Manual of Elementary Geology by Sir Lyell Charles Download Read more
A New Bat (Genus Leptonycteris) From Coahuila A New Bat (Genus Leptonycteris) From Coahuila by Howard J. Stains Download Read more
A New Bat (Genus Pipistrellus) from Northeastern Mexico A New Bat (Genus Pipistrellus) from Northeastern Mexico by Rollin Harold Baker Download Read more
A New Bog Lemming (Genus Synaptomys) From Nebraska A New Bog Lemming (Genus Synaptomys) From Nebraska by J. Knox Jones Download Read more
A New Chipmunk (Genus Eutamias) from the Black Hills A New Chipmunk (Genus Eutamias) from the Black Hills by John A. White Download Read more
A New Long-eared Myotis (Myotis Evotis) From Northeast… A New Long-eared Myotis (Myotis Evotis) From Northeast… by Howard J. Stains Rollin Harold Baker Download Read more
A New Name for the Mexican Red Bat A New Name for the Mexican Red Bat by E. Raymond Hall Download Read more
A New Piñon Mouse (Peromyscus truei) from Durango, Mex… A New Piñon Mouse (Peromyscus truei) from Durango, Mex… by Robert B. Finley Download Read more
A New Snake of the Genus Geophis From Chihuahua, Mexico A New Snake of the Genus Geophis From Chihuahua, Mexico by John M. Legler Download Read more
A New Species of Pocket Gopher (Genus Pappogeomys) Fro… A New Species of Pocket Gopher (Genus Pappogeomys) Fro… by Robert J. Russell Download Read more
A New Subspecies of Wood Rat (Neotoma mexicana) from C… A New Subspecies of Wood Rat (Neotoma mexicana) from C… by Robert B. Finley Download Read more
A Plan for Securing Observations of the Variable Stars A Plan for Securing Observations of the Variable Stars by E. C. Pickering Download Read more