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  Partner: UNT Libraries Government Documents Department
 Decade: 1940-1949
Spirit Leveling in Texas: Part 5. South-central Texas, 1896-1938

Spirit Leveling in Texas: Part 5. South-central Texas, 1896-1938

Date: 1941
Creator: Staack, J. G. (John George), 1878-
Description: Report discussing the figures of elevations determined by spirit leveling across particular quadrangles in Texas.
Contributing Partner: UNT Libraries Government Documents Department
Spirit Leveling in Texas: Part 3. West-central Texas, 1896-1938

Spirit Leveling in Texas: Part 3. West-central Texas, 1896-1938

Date: 1941
Creator: Staack, J. G. (John George), 1878-
Description: Report discussing the figures of elevations determined by spirit leveling across particular quadrangles in Texas.
Contributing Partner: UNT Libraries Government Documents Department
Report of the Chief of the Forest Service: 1941

Report of the Chief of the Forest Service: 1941

Date: 1941
Creator: United States. Forest Service.
Description: Annual report from the U.S. Department of Agriculture Forest Service describing activities of the organization, expenditures and receipts, and a discussion of other relevant topics for the fiscal year.
Contributing Partner: UNT Libraries Government Documents Department
Report of the Chief of the Forest Service: 1942

Report of the Chief of the Forest Service: 1942

Date: 1942
Creator: United States. Forest Service.
Description: Annual report from the U.S. Department of Agriculture Forest Service describing activities of the organization, expenditures and receipts, and a discussion of other relevant topics for the fiscal year.
Contributing Partner: UNT Libraries Government Documents Department
234-5 Project specification letter 234-41, 235-41 (Supplement D), Chemical Development Laboratory

234-5 Project specification letter 234-41, 235-41 (Supplement D), Chemical Development Laboratory

Date: October 22, 1948
Creator: Work, J.B.
Description: This letter itemizes the miscellaneous equipment and supplies not previously specified which should be ordered to equip the 234-5 Chemical Development Laboratory. Equipment currently carried in store stock is not included in this list. The vendor is given only to identify the item or as a suggested source of supply.
Contributing Partner: UNT Libraries Government Documents Department
Additional design tasks for 234-5 Project

Additional design tasks for 234-5 Project

Date: September 24, 1948
Creator: unknown
Description: Short communication.
Contributing Partner: UNT Libraries Government Documents Department
Assay, specific gravity, and iron methods for 234-5 process solutions

Assay, specific gravity, and iron methods for 234-5 process solutions

Date: April 26, 1949
Creator: Kendall, L.F.
Description: Short communication.
Contributing Partner: UNT Libraries Government Documents Department
Analytical requirements of the 234-5 Project

Analytical requirements of the 234-5 Project

Date: October 23, 1947
Creator: Work, J.B.
Description: At this time it is desirable that preliminary estimates be made of the manpower, equipment, space, layout and facility requirements of the analytical section for the 234-5 Project. To arrive at these requirements a rough estimate of the required analyses, their scope and their frequency has been compiled. This is expected to serve as a basis for the Laboratories Division to outline their space and equipment requirements as soon as possible and to assemble the required personnel for operation later. Crucial elements encountered in the process are classed as light impurities or as metallurgical impurities. The light elements are undesirable due to the {alpha}, n reaction with plutonium. The metallurgical impurities are undesirable since they change the physical properties of plutonium. The light elements undesirable in the finished product and the approximate tolerances (in ppM of plutonium) acceptable for each are listed assuming all other elements listed are absent. A list of the undesirable metallurgical impurities with the tolerances (again expressed in ppM of plutonium) for each element, assuming the other elements are absent are given.
Contributing Partner: UNT Libraries Government Documents Department
Discussion of questions concerning specification letters 234-1, 236-1, 234-2 and 234-3

Discussion of questions concerning specification letters 234-1, 236-1, 234-2 and 234-3

Date: November 24, 1947
Creator: unknown
Description: This memorandum confirms previous verbal answers to the questions presented by the 234-5 Design group for clarification regarding Specification Letters 234-1, 235-1, 234-2 and 234-3. Testing, plutonium concentration in air, equipment modifications and process control are among items addressed.
Contributing Partner: UNT Libraries Government Documents Department
Precipitation of plutonium and uranium from off-standard aqueons wastes

Precipitation of plutonium and uranium from off-standard aqueons wastes

Date: November 29, 1949
Creator: Richards, R.B.
Description: Short communication.
Contributing Partner: UNT Libraries Government Documents Department