Soil survey of Clearfield County, Pennsylvania /

"Advance sheets - Field Operations of the Bureau of Soils, 1916."

Soil survey of Mercer County, Pennsylvania /

"Advance sheets--field operations of the Bureau of Soils, 1917".

Reconnoissance soil survey of southeastern Pennsylvania [microform] /

Includes one folded color map.

Engineering soil survey of Rhode Island /

"A joint project with the Rhode Island Department of Public Works in cooperation with the United States Bureau of Public Roads."

Soil survey of Hoke County, North Carolina /

"Advance sheets--field operations of the Bureau of Soils, 1918"--Cover.

Soil survey, Nottoway County, Virginia

"Literature cited": p. 85.

Soil survey, Mathews County, Virginia

Cover title.

Soil survey, Northumberland and Lancaster Counties, Virginia

Cover title.

Soil survey, Norfolk County, Virginia

In cooperation with Virginia Agricultural Experiment Station.

Soil survey manual.

cover-title.

Soil survey of the Ventura Area, California,

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

Soil survey of the Yuma area, Arizona-California,

[Advance sheets--Field Operations of the Bureau of Soils, 1904]

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

"Advance sheets--Field operations of the Bureau of Soils, 1916."

Soil survey of the Anaheim area, California /

Mode of access: Internet.

Soil survey of the Stockton area, California /

Map on folded sheet inserted.