Servo-amplifiers for ion current measurement in mass spectrometry
J. S. Stacey, R.D. Russell, F. Kollar
1965, Journal of Scientific Instruments (42) 390-394
A servo-voltmeter can provide a useful alternative to the d.c. amplifier or vibrating reed electrometer for the accurate measurement of mass spectrometer ion currents, and has some advantages which recommend its use in certain applications. A generalized analysis based on servomechanism theory is presented as an aid for understanding the...
Eocene and miocene rocks off the northeastern coast of the United States
T. G. Gibson
1965, Deep-Sea Research and Oceanographic Abstracts (12)
A grab sample from a depth of 1675 m at a point south of Cape Cod contains early Eocene planktonic Foraminifera and is correlated with the Globorotalia rex zone of Trinidad. The assemblage indicates a depth comparable to that existing today. Regional relations suggest that the Cretaceous and Eocene deposits deepen...
Regional structure of the southeast Missouri and Illinois-Kentucky mineral districts
Allen Van Heyl, M. R. Brock, J. L. Jolly, C. E. Wells
1965, Bulletin 1202-B
No abstract available....
Water quality records in Texas, 1964
U.S. Geological Survey
1965, Report
No abstract available....
Geological Survey research 1965, Chapter B
Water Resources Division, U.S. Geological Survey
1965, Professional Paper 525-B
No abstract available....
Ground-water pumpage and water-level changes in the Milwaukee-Waukesha area, Wisconsin, 1950-61
J. H. Green, R. D. Hutchinson
1965, Water Supply Paper 1809-I
Artesian water pressure in the deep sandstone aquifer continued to decline throughout most of the Milwaukee-Waukesha area, Wisconsin between 1950 and 1961. Areas of greatest water-level decline were in northeast Waukesha County and in northwest Milwaukee County. The chief cause of the decline was continued heavy pumpage. The major aquifers...
Oregon ground-water levels, 1964
Jack E. Sceva, Robert DeBow
1965, Report
No abstract available....
Add to e-Shelf Records of wells, water levels and chemical quality of water in Baker Valley, Baker County, Oregon
G.L. Ducret Jr., D.B. Anderson
1965, Report
Records from 135 representative wells, and chemical analyses of water from 49 wells and 2 springs are tabulated. Drillers' logs of representative wells comprise most of the report....
Selected ground water data in the Eola-Amity Hills area, northern Willamette Valley, Oregon
Don Price, Nyra A. Johnson
1965, Report
Occurrence, quality, and availability of ground water differ considerably from place to place in the Eola-Amity Hills area because of the highly diversified geologic and hydrologic conditions. A table relates the geologic situation to the availability of ground water for four...
Distribution of fishes in U. S. streams tributary to Lake Superior
Harry H. Moore, Robert A. Braem
1965, Special Scientific Report - Fisheries 516
Experimental sea lamprey control by the Bureau of Commercial Fisheries on Lake Superior streams provided many new distributional records of the fish fauna. Seventy-one species were recorded from 175 streams. Specimens were collected at the electromechanical barriers, with electric shockers, with fyke nets, and during chemical treatment of streams. Maps...
The water story in Central Iowa
F. R. Twenter, R. W. Coble
1965, Iowa Geological Survey Water Atlas 1
"The general welfare of the people of the state of Iowa requires that the water resources of the state be put to beneficial use to the fullest extent of which they are capable." This can be achieved only by a knowledge and understanding of the water resources - their use,...
Eimeria aurati n. sp. (Protozoa:Eimeriidae) from goldfish (Carassius auratus) in North America
G. L. Hoffman
1965, Journal of Protozoology (12) 273-275
Eimeria aurati n. sp. is described from the intestine of the goldfish, Carassius auratus, from Pennsylvania, U.S.A. Oocysts were very numerous in long, whitish, opaque fecal casts. They were 16 to 24 by 14 to 17 μ (mean, 20.1 by 16.3) and were non-sporulated when passed but sporulated 2 to 5 days...
A review of advances in the study of diseases of fish: 1954-1964
G. Post
1965, Progressive Fish-Culturist (27) 3-12
STUDY OF DISEASE IN ANIMALS, INCLUDING MAN, has progressed rapidly in the past decade. Looking back, we find amazing success in the study of man's diseases and possibly only a little less success in studies of diseases of domesticated homeothermic animals. We who are interested in the poikilothermic animals may feel...
A primer on water quality
H. A. Swenson, H. L. Baldwin
1965, Report
Aeromagnetic map of the Old Forge quadrangle and part of the West Canada Lakes quadrangle, Herkimer and Hamilton Counties, New York
James R. Balsley, R. W. Bromery
1965, Geophysical Investigations Map 501
No abstract available....
Vigil Network sites: A sample of data for permanent filing
Luna Bergere Leopold, William W. Emmett
1965, International Association of Scientific Hydrology - Bulletin (10) 12-21
The Vigil Network consists of places where observations are made through time to record changes in landscape features over a long period. Resurveys will usually be made once each year or every few years and the period of observation, hopefully, will extend through and beyond the International Hydrological Decade.Vigil Network...
Food of lake trout in Lake Superior
William R. Dryer, Leo F. Erkkila, Clifford L. Tetzloff
1965, Transactions of the American Fisheries Society (94) 169-176
Stomachs were examined from 1,492 lake trout and 83 siscowets collected from Lake Superior. Data are given on the food of lake trout of legal size (17 inches or longer) by year, season, and depth of water, and on the relation between food and size among smaller lake trout. Fish...
Movements of hatchery-reared lake trout in Lake Superior
Richard L. Pycha, William R. Dryer, George R. King
1965, Journal of the Fisheries Research Board of Canada (22) 999-1024
The history of stocking of lake trout (Salvelinus namaycush) in the Great Lakes is reviewed. The study of movements is based on capture of 24,275 fin-clipped lake trout taken in experimental gill nets and trawls and commercial gill nets. Yearling lake trout planted from shore dispersed to 15-fath (27-m) depths...
Ground-water discharge from the Edwards and associated limestones, San Antonio area, Texas, 1964
Paul Rettman
1965, Edwards Underground Water District Bulletin 8
No abstract available....
Chemical analyses of water from observation wells in the Edwards and associated limestones, San Antonio area, Texas, 1964
Sergio Garza
1965, Edwards Underground Water District Bulletin 7
No abstract available....
Surface water records of Texas, 1964
U.S. Geological Survey
1965, Report
The surface-water records for the 1964 water year for gaging stations, partial-record stations, miscellaneous sites, and base-flow studies within the State of Texas are given in this report. For convenience there are also included records for a few pertinent gaging stations in bordering States. The records were collected and computed...
The binary system K2SO4CaSO4
J.J. Rowe, G.W. Morey, I.D. Hansen
1965, Journal of Inorganic and Nuclear Chemistry (27) 53-58
The binary system K2SO4CaSO4 was studied by means of heating-cooling curves, differential thermal analysis, high-temperature quenching technique and by means of a heating stage mounted on an X-ray diffractometer. Compositions and quench products were identified optically and by X-ray. Limited solid solution of CaSO4 in...
Solution of rocks and refractory minerals by acids at high temperatures and pressures. Determination of silica after decomposition with hydrofluoric acid
I. May, J.J. Rowe
1965, Analytica Chimica Acta (33) 648-654
A modified Morey bomb was designed which contains a removable nichromecased 3.5-ml platinium crucible. This bomb is particularly useful for decompositions of refractory samples for micro- and semimicro-analysis. Temperatures of 400–450° and pressures estimated as great as 6000 p.s.i. were maintained in the bomb for...
A new Rosalina (foraminifera) parasitic on a bivalve
R. Todd
1965, Deep-Sea Research and Oceanographic Abstracts (12)
In a collection of pelecypods from deep water off the west coast of Africa, several specimens of a new species of the foraminifer, Rosalina, are attached to the umbonal area of the bivalve. In addition, numerous attachment scars are observed on the exterior...
Potassium, rubidium, strontium, thorium, uranium, and the ratio of strontium-87 to strontium-86 in oceanic tholeiitic basalt
M. Tatsumoto, C. E. Hedge, A.E.J. Engel
1965, Science (150) 886-888
The average concentrations of potassium, rubidium, strontium, thorium, and uranium in oceanic tholeiitic basalt are (in parts per million) K, 1400; Rb, 1.2;...
