Chemosterilants screened against the boll weevil in dipping and feeding tests /

"In cooperation with Mississippi Agricultural Experiment Station."

Releases of Bracon kirkpatricki (Wilkinson) and Chelonus blackburni Cameron for pink bollworm control in Arizona /

"In cooperation with Arizona Agricultural Experiment Station."

Rearing cotton insects in the laboratory /

Cover title.

Soil survey of the Alturas area, California /

United States Department of Agriculture, Bureau of Chemistry and Soils in cooperation with the University of California Agricultural Experiment Station.

Soil survey of the Ukiah area, California /

"Advance sheets--field operations of the Bureau of Soils, 1914."

Soil survey of the Santa Barbara area, California /

United States Department of Agriculture in cooperation with the University of California Agricultural Experiment Station.

Soil survey of the Santa Cruz area, California /

Bibliography: p. 90.

Soil survey of the Shasta Valley area, California /

Done jointly by the Bureau of Soils and the University of California Agricultural Experiment Station.

Soil survey of the Suisun area, California /

United States Department of Agriculture, Bureau of Chemistry and Soils in cooperatio with the University of California Agricultural Experiment Station.

Soil survey of the Wasco area, California /

Caption title: Soil survey of the Wasco area, California.

Soil survey, Auburn area, California /

"In cooperation with the University of California Agricultural Experiment Station."

Soil survey of the Napa area, California /

In cooperation with the University of California Agricultural Experiment Station."

Soil survey of the Clear Lake area, California.

In cooperation with the University of California Agricultural Experiment Station.

Soil survey of the Coachella Valley area, California /

At head of title: U.S. Department of Agriculture, Bureau of Soils in cooperation with the University of California Agricultural Experiment Station.

Soil survey of the Sacramento-San Joaquin Delta area, California /

"Report no. 21."