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...
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...
Ground-water resources of the Jenkins-Whitesburg area, Kentucky
D. S. Mull
1965, Water Supply Paper 1809-A
No abstract available....
Net budget and flow of South Cascade Glacier, Washington
Mark Meier, Wendell V. Tangborn
1965, Journal of Glaciology (5) 547-566
No abstract available....
Field application methods for recovery of the selective lampricide, 3-trifluoromethyl-4-nitrophenol
Thomas J. Billy, Stacy L. Daniels, Lloyd L. Kempe, Alfred M. Beeton
1965, Conference Paper, Proceedings of the 8th Conference on Great Lakes Research
Colorimetric methods are described for the detection of residues of the selective lampricide, 3-trifluoromethyl-4-nitrophenol (TFM), in natural waters and fish tissues. Solvent extraction and anion exchange were used to separate and concentrate the lampricide, and to reduce high background colors which often interfere with the determinations. Data from the Pentwater...
Sampling efficiencies of three kinds of dredges in southern Lake Michigan
Alfred M. Beeton, John F. Carr, Jarl K. Hiltunen
1965, Conference Paper, Proceedings of the 8th Conference on Great Lakes Research
No abstract available....
An introductory investigation of the toxicity of Larrea tridentata
W. L. Halvorson
1965, Saguaroland Bulletin (19) 68-70, 76
Geological Survey research 1965, Chapter B
Water Resources Division, U.S. Geological Survey
1965, Professional Paper 525-B
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...
High precision conductivity bridge
R.L. Wershaw, M. C. Goldberg
1965, Analytical Chemistry (37) 1180-1181
No abstract available....
Fluorocyano-benzenes and -pyridines
G. C. Finger, D. R. Dickerson, T. Adl, T. Hodgins
1965, Chemical Communications (London) 430-431
[No abstract available]...
The black-spot (Uvulifer ambloplitis: Trematoda: Strigeoidea) of centrarchid fishes
G. L. Hoffman, R.E. Putz
1965, Transactions of the American Fisheries Society (94) 143-151
Adult Uvulifer ambloplitis were recovered from a kingfisher and the worm eggs were incubated. Helisoma snails were infected with the resultant miracidia. Cercariae, very similar, but not identical to Cercaria bessiae, were recovered and used to infect fish. It was possible to infect Lepomis macrochirus, but not Catostomus commersoni, Cottus...
Bauxite and kaolin deposits of Mississippi, exclusive of the Tippah-Benton district
Louis C. Conant
1965, Bulletin 1199-B
No abstract available....
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....
Characteristics and pathogenicity of a capsulated Pseudomonas isolated from goldfish
G. L. Bullock
1965, Applied Microbiology (13) 90-92
Characteristics of a capsulated bacterium isolated from an epizootic among goldfish (Carassius auratus) were determined as well as the ability of the bacterium to produce experimental infections. The bacterium was found to be a gram-negative rod which oxidized carbohydrates, produced green fluorescent pigment, and otherwise seemed to fit into the...
Characteristics and identification of oxidative Pseudomonads isolated from diseased fish
G. L. Bullock, S. F. Snieszko, C. E. Dunbar
1965, Journal of General Microbiology (38) 1-7
Several characteristics of 20 strains of oxidative pseudomonads, all but one of which were isolated from freshwater fish, were determined. All strains oxidized glucose and gluconate, produced NH3 from 1 % peptone, grew at 6, 12, 20 and 30° and produced cytochrome oxidase. Lipase was produced by 17 of the...
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...
Some aspects of the geochemistry of yttrium and the lanthanides
Michael Fleischer
1965, Geochimica et Cosmochimica Acta (29) 755-772
Recent data on the relative abundances of the lanthanides and yttrium in meteorites, basaltic rocks, granitic rocks and sedimentary rocks are reviewed. It is shown that the data are inadequate to substantiate or to disprove Taylor's derivation from these data of a 1:1 abundance ratio of basaltic to granitic rocks...
Stishovite: Synthesis by shock wave
P. S. De Carli, D.J. Milton
1965, Science (147) 144-145
Small amounts of stishovite were separated from specimens of explosively shocked sandstones, novaculite, and single-crystal quartz. Estimated peak pressures for the syntheses ranged...
Studies on Myxosoma cartilaginis n.sp. (Protozoa: Myxosporidea) of centrarchid fish and a synopsis of the Myxosoma of North American freshwater fishes
G. L. Hoffman, R.E. Putz, C. E. Dunbar
1965, Journal of Protozoology (12) 319-332
Igneous rocks of the Indian ocean floor
C.G. Engel, R.L. Fischer, A.E.J. Engel
1965, Science (150) 605-610
Four dredge hauls from near the crest and from the eastern flank of the seismically active Mid-Indian Ocean Ridge at 23° to 24°S,...
Multiplication of lymphocystis virus in the bluegill (Lepomis macrochirus)
K. Wolf, C. P. Carlson
1965, Annals of the New York Academy of Sciences (126) 414-419
No abstract available....
Distribution and abundance of the polychaete, Manayunkia speciosa Leidy, in western Lake Erie
Jarl K. Hiltunen
1965, Ohio Journal of Science (65) 183-185
The abundance and distribution of the freshwater polychaete, Manayunkia speciosa, in 1961, are described for western Lake Erie. Previous records reveal that the species has either been generally overlooked or presently its numbers have greatly increased in the area considered....
Preliminary materials map, Massachusetts portion, Berlin quadrangle, New York-Massachusetts-Vermont
George William Holmes
1965, Open-File Report 65-73
No abstract available....
