Distribution and use of electricity,

On cover: Power plant engineering handbook.

Geologic and well-construction data for the H-9 borehole complex near the proposed Waste Isolation Pilot Plant site, southeastern New Mexico /

GPO copy lacks plate.

Recherches physico-chimiques sur la terre végétale et ses rapports avec la distribution géographique des plantes /

Includes bibliographical references (p. [57]-62, 340).

Endangered and threatened species of Illinois : status and distribution /

Includes bibliographical references (v. 1, p. 106-116; v. 2, p. 106-114) and indexes.

Endangered and threatened species of Illinois : status and distribution /

Includes bibliographical references (v.1, p. 101-115) and indexes.

The fleas of North America : classification, identification, and geographic distribution of these injurious and disease-spreading insects /

Contribution from Bureau of Entomology and Plant Quarantine.