The classification of soils for purposes of flexible pavement design.

Mode of access: Internet.

Bibliography of organic and forest soils, 1926 to 1934; selected from the literature by the Organic and forest soils committee of the American soil survey association;

Mimeographed.

Evaluation of soils and permafrost conditions in the territory of Alaska by means of aerial photographs /

"September 1950."

Bearing capacity of soils.

Cover title.

A soils study for the Maryland-National Capital Park and Planning Commission; recommendations and evaluations of soils information for urban planning.

Cover title.

On the behavior of nitrate in paddy soils.

Reprint from Japan. Agric. exper. station, Tokyo. Bulletin. v. 1, no. 2, Oct. 1907

Soils memorandum.

Some are revised editions.

McLean County soils /

Cover title.

Winnebago County soils /

Cover title.

Edgar County soils /

Cover title.

Du Page County soils /

Cover title.

Rhizophora mangle L., Rhizophoraceae : red mangrove, mangrove family /

"SO-ITF-SM-2."

Soils of the north central region of the United States. : Agricultural Experiment Stations of Illinois [and others] and the U. S. Dept. of Agriculture, cooperating.

Bibliography: p. 189-192

Soils book;

Mode of access: Internet.

Possibilities of shelterbelt planting in the plains region. A study of tree planting for protective and ameliorative purposes as recently begun in the shelterbelt zone of North and South Dakota, Nebraska, Kansas, Oklahoma, and Texas by the Forest service; together with information as to climate, soils, and other conditions affecting land use and tree growth in the region.

On cover: Issued under special allotment to the Plains shelterbelt project, U.S. Forest service.