Effects of acid precipitation on soil leachate quality : computer calculations /

Mode of access: Internet.

Water-quality and physical characteristics of streams in the Treyburn Development area of Falls Lake watershed, North Carolina, 1994-98 /

Includes bibliographical references (p. 53-55).

Soil depletion estimates : version 2 : a user's guide to a personal computer model for estimating long-term onsite physical and economic impacts of soil depletion /

"January 1990"--P. iii.

Physical land conditions on the San Mateo county soil conservation district, California ...

Mode of access: Internet.

Illinois Conference on Soil Conservation and Water Quality : conference proceedings of November 9-10, 1983 at Holiday Inn East, Springfield, Illinois /

Includes bibliographical references.

Effect of physical soil properties on cotton emergence : prediction and quantitative description / [by D. F. Wanjura].

"Agricultural Research Service ... in cooperation with Arizona and Texas Agricultural Experiment Stations."

A geographical sketch of that part of North America, called Oregon: containing an account of the Indian title;--the nature of a right of sovereignty;--the first discoveries;--climate and seasons;--face of the country and mountains--natural divisions, physical appearance and soil of each;--forests and vegetable productions;--rivers, bays; &c.; islands, &c.; animals;--the disposition of the Indians, and the number and situation of their tribes;--together with an essay on the advantages resulting from a settlement of the territory. To which is attached a new map of the country.

Mode of access: Internet.