An electrical method of determining the soluble salt content of soils : with some results of investigations on the effect of water and soluble salts on the electrical resistance of soils /

Mode of access: Internet.

Implementation of agricultural salinity control technology in Grand Valley /

Mode of access: Internet.

Evaluation of irrigation methods for salinity control in Grand Valley /

Mode of access: Internet.

Paper electrophoretic studies of radioactive chromium salts in blood /

"Published with the approval of the Director of the University of Tennessee Agricultural Experiment Station."--Page iii.

Crops used in the reclamation of alkali lands in Egypt /

Mode of access: Internet.

On the improvement of poor soils : read in the Holderness Agricultural Society, June 6, 1796, in answer to the following question; "What is the best method of cultivating and improving poor soils, where lime and manure cannot be had?"

Mode of access: Internet.

The Salt problem in irrigation agriculture : research at the United States Regional Salinity Laboratory.

Cover title.

Soil survey.

Title from cover.

The mechanistic conception of life; biological essays,

Reprinted from various sources.

Reconnoissance soil survey of the lower San Joaquin Valley, California /

At head of title: U.S. Department of Agriculture, Bureau of Soils.

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 lower Salinas Valley, California /

"Reprinted from the Report on field operations of the Bureau of Soils for 1901."--Cover.

Soil survey of King City area, California /

Mode of access: Internet.