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Radioactive hot springs issue from a fault zone in crystalline rock of the Boulder batholith at Alhambra, Jefferson County, in southwestern Montana. The discharge contains high concentrations of radon, and the gross alpha activity and the concentration of adium-226 exceed maximum levels recommended by the Environmental Protection Agency for drinking...

The Fish Springs Flat area includes about 590 square miles (1,530 square kilometers) in western Utah. Total annual precipitation on the area averages about 7 inches (180 millimeters) and totals about 232,000 acre-feet (286 cubic hectometers). Fish Springs Wash is the major drainage in the area; and, along with numerous...

The Dugway Valley-Government Creek area covers about 890 square miles (2,300 square kilometers) in west-central Utah. Total annual precipitation on the area averages about 380,000 acre-feet (470 cubic hectometers). Most streams are ephemeral except for a few in their upper reaches--all are ephemeral below the altitude of about 6,000 feet...

The Quinnipiac River basin area in southcentral Connecticut covers 363 square miles, and includes all drainage basins that enter Long Island Sound from the Branford to the Wepawaug Rivers. Its population in 1970 was estimated at 535,000. Precipitation averages 47 inches per year and provides an abundant supply of water....

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Fingerling channel catfish, Ictalurus punctatus, were fed one of three diets: one deficient in vitamin C (ascorbic acid), one deficient in vitamin D3 (cholecalciferol), or one containing both vitamins. Semimonthly from May to September and monthly from September to February, calcium and phosphorus were determined in eviscerated bodies and fat-free...

To the seamen of the 18th century who skirted its ice-choked seas in their wooden vessels, Antarctica was known as "Terra Australis Incognito" - the unknown land of the south....

Passage of the Coastal Zone Management Act of 1972 focused attention on the Nation's coastal land and water areas. As plans for more effective management of the coastal zone evolved, it soon became apparent that improved maps and charts of these areas were needed. This handbook was prepared with the...

In this issue we cover several interesting topics, including a report on the NCIC/Special Libraries Association meeting in Denver, the launching of a third Landsat satellite with a new thermal band, and the formation of a new California map society....

As our Nation's resources are developed, water will play an increasingly important role, both as a resource to be developed and as a resource to be protected. The proper development and protection of our water resources, however, will depend on adequate data on the quantity and quality of our water....

This report has been prepared in order to identify the NAWDEX Data Systems and their respective documentation. It discusses the operation of the systems as well as tools that have been developed to enhance or facilitate their use....

Fiscal 1977 marked the 98th year the U.S. Geological Survey has endeavored in the unceasing task of providing information about the Earth and its physical resources, and regulating the activities of lessees engaged in extracting petroleum and other minerals from the public domain. The past year also marked the beginning...

Two simple, rapid, sensitive methods were developed for determining the concentration of the lampricide 2',5-dichloro-4'-nitrosalicylanilide (Bayer 73) in stream water. Bayer 73 was extracted from acidified water samples with chloroform and then hydrolyzed to 2-chloro-4-nitroaniline (CNA) with either acid or base. The CNA was diazotized with sodium nitrite, and an...

A review was made of published and unpublished studies on nutritional requirements, diets, and feeding of selected coolwater species of fishes: yellow perch (Perca flavescens), European perch (P. fluviatilis), walleye (Stizostedion vitreum), smallmouth bass (Micropterus dolomieui), northern pike (Esox lucius), muskellunge (E. masquinongy), and the northern pike x muskellunge hybrid. The published information...

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1. The exponential removal of ICG from the plasma by the mallard duck liver made possible the measurement of fractional dye clearance (K), plasma volume (PV) and plasma clearance (PC).2. Values obtained for K (14.9%/min), PV (39.2 ml/kg) and PC (5.8 ml/min per kg) agreed with those obtained by other...

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Because of the change in regional boundaries, Region V now includes Piedmont and Coastal Plains areas of the southeastern states from Maryland to the Gulf of Mexico, bordered on the west by Interstate Rt. 81 and US Rt. 220. Maryland's mountain stations are now reporting through Region IV (NASS 2:184-187)....