The glacial gravels of Maine and their associated deposits /

Includes bibliographical references (p. 2-4) and index.

Peru in the guano age; being a short account of a recent visit to the guano deposits, with some reflections on the money they have produced and the uses to which it has been applied,

Mode of access: Internet.

A preliminary report on the coal deposits of Missouri,

At head of title: Geological survey of Missouri. Arthur Winslow, state geologist.

Tin deposits near Irish Creek, Virginia,

Bibliography: p. 229-231.

Structure and toxicity of insecticide deposits for control of bark beetles /

Includes bibliographical references (p. 54-59).