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THE EARLY STAGES IN THE DEVELOPMENT OF THE HYPOPHYSIS OF AMIA CALVA

Published in Biol Bull, in 1900, in volume 1, pages 57-80

Published in Biol Bull, in 1900, in volume 1, pages 113

THE EYES OF THE BLIND VERTEBRATES OF NORTH AMERICA. III: THE STRUCTURE AND ONTOGENIC DEGENERATION OF THE EYES OF THE MISSOURI CAVE SALAMANDER, AN ACCOUNT BASED ON MATERIAL COLLECTED WITH A GRANT FROM THE ELIZABETH THOMPSON SCIENCE FUND

Published in Biol Bull, in 1900, in volume 2, pages 33-41

VARIATION IN THE TEETH OF NEREIS

Published in Biol Bull, in 1900, in volume 2, pages 129-143

Gordiacea from the Cope collection

Published in Biol Bull, in 1900, in volume 1, pages 95-98