Air quality criteria for hydrocarbons.

Includes bibliographies.

Air quality criteria for photochemical oxidants.

Includes bibliographies.

Air quality criteria for carbon monoxide.

Includes bibliographies.

Annual report.

Mode of access: Internet.

A health program for the nursery school,

Mode of access: Internet.

Annual report.

First annual report of the city plan commission, Providence, Rhode Island, January 4, 1915.

Report upon the removal of swill and house offal, and other subjects. Presented to the Board of Health, June 25, 1866, by the Superintendent of Health.

Edwin M. Snow, Superintendent.

1990 census of population and housing.

"Issued July 1991"

Christoph Daniel Ebelings, Professors der Geschichte am Hamburgischen Gymnasium und Bibliothekars, Erdbeschreibung und Geschichte von Amerika : die Vereinten Staaten von Nordamerika.

Vol. 7 has imprint: Hamburg 1816, bei Hoffmann und Campe.

The ports of southern New England. (Revised 1937)

Reports on the ports of Providence and Newport, Rhode Island; New Bedford and Fall River, Mass.; New Haven, New London, Bridgeport, Norwalk and Stamford, Conn. cf. p. v.

Guide to research in air pollution /

Mode of access: Internet.

Applicability of two mathematical models to the batch settling of activated sludge.

"Supported by Federal Water Pollution Control Administration, U.S. Department of the Interior. Research project WP-01011."

Uptake of soluble phosphate by activated sludge /

"Supported by Federal Water Pollution Control Administration ... research fellowship F1-WP-21, 616, and Ford Foundation."

Destabilization-aggregation of dilute colloidal suspensions by polyelectrolytes.

Vita.

Studies on the removal of nematodes by rapid sand filtration /

"Supported by Federal Water Pollution Control Administration Research Project WP-00047.