Some effects of insecticide spray accumulations in soil on crop plants /

Caption title.

Effects of certain insecticides in soil on crop plants /

Caption title.

Decomposition of wood and bark sawdusts in soil, nitrogen requirements and effects on plants /

Caption title.

Challenging careers in soil conservation.

Mode of access: Internet.

An account of five aerial voyages in Scotland, in a series of letters to his guardian, Chevalier Gerardo Compagni /

Mode of access: Internet.

Evaluation of aerial remote sensing techniques for defining critical geologic features pertinent to tunnel location and design /

Mode of access: Internet.

An old captivity,

A young airmen, an Oxford don, and his daughter are aided on an expedition to the Arctic by Norsemen and their longships of a thousand years before.

Proof test of water transparency method of depth determination /

Mode of access: Internet.

Map substitute products : presented at SHAPE Geographic Conference, Paris, France, 22-25 October 1963 /

Seal on cover: U.S. Army, Corps of Engineers, Army Map Service.

Automated digital mosaicking of airborne videography /

"FHTET 96-12."

Effects of beach nourishment on the nearshore environment in Lake Huron at Lexington Harbor (Michigan) /

In October 1980 the U.S. Army Corps of Engineers conducted a beach nourishment project at the Lexington (Michigan) Harbor on the southwest shore of Lake Huron, a project designed to mitigate beach erosion attributable to the installation of the harbor. In response to a request from the Coastal Engineering Research Center (CERC), the U.S. Fish and Wildlife Service's Great Lakes Fishery Laboratory conducted a Corps-funded study from June 1980 to October 1981 along a 8.4-kilometer segment of shoreline adjacent to the harbor to determine the effect of the Corps' beach nourishment project on the nearshore aquatic environment. The study performed by the service included aerial photographic surveys of the study area; measurement of dissolved oxygen, turbidity, and suspended particulate matter levels; and collection of lake bottom sediments, macrozoobenthos and fish. Analysis of the aerial photographs showed that the beach face profile changed markedly during the study as a result of beach nourishment. Dredging of about 19,000 cubic meters of beach sediment from an accretion area adjacent to the harbor's north breakwater caused the beach face to recede, while deposition of this sediment on a feeder beach south of the harbor caused the beach face there to extend lakeward.

The use of agricultural soil maps and the status of agricultural soil mapping in the United States. Presented at the Twenty-Eighth annual meeting, 1948.

Cover title: Engineering use of agricultural soil maps.

The slotted-templet method for controlling maps made from aerial photographs /

Contribution from Soil Conservation Service.

Compendium of ERT soil sampling and surface geophysics procedures : interim final.

Mode of access: Internet.

Investigations of basic geometric quality of aerial photographs and some related problems /

"17 August 1962."