The coupled trickling filter-activated sludge process : design and performance /

Mode of access: Internet.

Report on tests of welding filter plates /

Mode of access: Internet.

Fine solids removal following combined chemical-trickling filter treatment /

Mode of access: Internet.

Wastewater stabilization lagoon : intermittent sand filter systems /

Mode of access: Internet.

High daily rate trickling filter performance : under the direction of the Board of State Health Commissioners, Upper Mississippi River Basin Sanitaton Agreement /

Includes bibliographical references.

Long term recharge of trickling filter effluent into sand /

Mode of access: Internet.

A preliminary investigation of the effectiveness of a diatomite filter in the removal of radioactive phosphorus from water /

"November 1, 1951."

Evaluation of filter flammability and filter bank fire detection systems /

"U.S. Atomic Energy Commission Contract AT(29-1)-1106."

Designs of filter plants, January 1900.

Mode of access: Internet.

Digital filter synthesis

"Cornell Aeronautical Laboratory, Inc. has assigned Report no. XA-2177-B-1 to this document."

Margaret: a tale of the real and the ideal, blight and bloom; including sketches of a place not before described, called Mons Christi ...

Mode of access: Internet.

Effects of filter response on analysis of aircraft noise data /

Mode of access: Internet.

California fruit and nut crops: acreage, production, utilization and value, 1949-1961; bloom, harvesting and marketing dates and principal producing counties.

Revises and updates California. Dept. of Agriculture. State publication 261.

Flowers that bloom in the spring : spring comes to Illinois--and with it come wild flowers which are part of the picture of springtime /

Includes index.

Operator's manual : tester, airflow, gas-particulate filter unit, M39 (NSN 6680-00-436-4212).

"15 November 1983."