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Barnyard Manure.
Describes the benefits of more economical management of organic farm resources, namely barnyard manure. Discusses the management and application of methods for using fertilizers on the farm.
Date:
May 10, 1906
Creator:
United States. Department of Agriculture.
System:
The UNT Digital Library
Forward observation.
"This manual provides instructions for training commissioned or enlisted personnel in the tactics and techniques of forward observation."
Date:
August 10, 1944
Creator:
United States. War Department.
System:
The UNT Digital Library
Heat treating and inspection of metals
This report discusses these topics: I. Principles of heat treating -- II. Heat-treating equipment -- III. General heat treatment of steel -- IV. Specific heat treatments for aircraft steels -- V. General heat treatment of aluminum alloys -- VII. Hardness testing -- VIII. Magnaflux inspection.
Date:
September 10, 1941
Creator:
United States. War Department.
System:
The UNT Digital Library