Life Sciences

Pleistocene Pocket Gophers From San Josecito Cave, Nuevo Leon, Mexico

Fossils: A Story of the Rocks and Their Record of Prehistoric Life Denver Museum of Natural History, Popular Series No. 3

Biology

A Guide for the Study of Animals

A New Subspecies of the Fruit-eating Bat, Sturnira ludovici, From Western Mexico

Death and resurrection from the point of view of the cell-theory

The Social Direction of Evolution: An Outline of the Science of Eugenics

Natural History of the Salamander, Aneides hardii

Essays on Darwinism

Scientific Essays and Lectures

Dinosaurs, with Special Reference to the American Museum Collections

The British Woodlice

Evolution and Adaptation

On adipocire, and its formation

Darwinism stated by Darwin himself

Faith and Fossils

Forest Ecosystems

Bird Migration Secrets

Coral Reef Life

Plant Survival Tactics