Harper's encyclopaedia of United States history from 458 A.D. to 1912.

Mode of access: Internet.

First lessons in United States history.

Mode of access: Internet.

Dictionary of United States history.

Mode of access: Internet.

Catechism of United States history /

Mode of access: Internet.

1001 questions and answers on United States history; including the Constitution and amendments.

Mode of access: Internet.

Botany of the southern states. In two parts. Part I. Structural and physiological botany and vegetable products. Part II. Descriptions of southern plants. Arranged on the natural system. Preceded by a Linnæan and a dichotomous analysis.

Mode of access: Internet.

Farm drainage in the United States : history, status, and prospects.

"December 1987"--P. i.

Sulfur content of rainwater and atmosphere in southern states as related to crop needs /

Caption title.

The Agricultural outlook for the southern states, 1930-31 /

"December, 1930."

The Agricultural outlook for the southern states, 1931-32 /

Caption title.

Plans of farm buildings for southern states /

Cover title.

New landmarks of soil conservation : U.S. Department of Agriculture, Soil conservation service, southern states.

Cover title.

Harper's encyclopæia of United States history from 458 A.D. to 1909, based upon the plan of Benson John Lossing ...

Mode of access: Internet.

The men who made the nation; an outline of United States history from 1760 to 1865,

Reprinted 1904.

An Examination of the AP United States History Exam Free Response Section

Michael S. Henry examined the first 30 years of the AP United States History exam’s essay section. This study examined changes that have occurred over the last 20 years by classifying questions into one of six categories and found little change in the types of essays used during this timeframe.