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Page 5970, results 149226 - 149250

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Publication Extents

Not all publications have extents, not all extents are completely accurate
Numbered nasal discs for waterfowl
James C. Bartonek, C.W. Dane
1964, Journal of Wildlife Management (28) 688-692
Numbered nasal discs were successfully used in studies requiring large numbers of individually marked waterfowl. The procedure for constructing these discs is outlined. Blue-winged teal (Anas discors) with 5/8-inch discs, and canvasback (Aythya valisineria) and redhead (A. americana) with 3/4-inch discs can be individually identified up to 50 and 80...
The spottail shiner in Lower Red Lake, Minnesota
Lloyd L. Smith Jr., Robert H. Kramer
1964, Transactions of the American Fisheries Society (93) 35-45
On the basis of 14,564 spottail shiners (Notropis hudsonius) from Red Lakes, Minnesota, growth rates, strength of year classes, and food utilization were studied. Males and females had different body-scale relationships, and females grew faster than males. There was high correlation between water temperature and growth rate. Strength of year...
Status of the deepwater cisco population of Lake Michigan
Stanford H. Smith
1964, Transactions of the American Fisheries Society (93) 155-163
The species and size composition and the abundance of the cisco (Leucichthys spp.) population of Lake Michigan have undergone drastic changes since the sea lamprey became established in the 1940's. The changes were measured by the catches of gill nets of identical specifications fished at the same seasons, depths, and...
Geology and ground-water conditions of Clark County, Washington, with a description of a major alluvial aquifer along the Columbia River
Maurice John Mundorff
1964, Water Supply Paper 1600
This report presents the results of an investigation of the ground-water resources of the populated parts of Clark County. Yields adequate for irrigation can be obtained from wells inmost farmed areas in Clark County, Wash. The total available supply is sufficient for all foreseeable irrigation developments. In a few local...
Water in the world
Luna Bergere Leopold
1964, The UNESCO Courier (17) 11-13
The earth, Including Its oceans and atmosphere, ls a giant distillation system whose operation brings about the distribution of fresh water throughout the world, from the frozen wastes of polar regions to the burning equatorial deserts. Stated in the simplest terms, distillation, condensation and liquid flow are the elemental processes...
Classes of land-surface form in the United States
Edwin Hammond
1964, Report, The national atlas of the United States of America
This digital dataset describes classes of land-surface form in the conterminous United States. The source of the data is the map of land-surface form in the 1970 National Atlas of the United States, pages 62-63, which was adapted from Edwin H. Hammond, "Classes of land surface form in the...
Catalytic determination of vanadium in water
M. J. Fishman, M. W. Skougstad
1964, Analytical Chemistry (36) 1643-1646
A kinetic determination of V(V) as a catalyst was spectrophotometrically performed by using the indicator reaction of Gallamine blue (GB+) and bromate at pH 2.0. The reaction was followed by measuring absorbance change for a fixed-time of 3 min at 537 nm. The variables such as reagent...
Spectrophotometric determination of fluorine in silicate rocks
L. C. Peck, V. C. Smith
1964, Talanta (11) 1343-1347
The rock powder is sintered with a sodium carbonate flux containing zinc oxide and magnesium carbonate, the sinter-cake leached with water and the resulting solution filtered. Fluorine is separated from the acidified filtrate by steam distillation and determined spectrophotometrically by means of a zirconium-SPADNS reagent. If...
Cenomanian (Cretaceons) Foraminifera from the Puerto Rico Trench
R. Todd, D. Low
1964, Deep-Sea Research and Oceanographic Abstracts (11) 391-393
An assemblage of predominantly planktonic Foraminifera is discussed from rocks of Cenomanian age dredged from between 3,200 and 3,500 fm on the north slope of the Puerto Rico Trench. Thirty-three planktonic and benthonic species are described. Planomalina pulchella is new; nine species are specifically...
Infrared surveys of Hawaiian volcanoes
W. A. Fischer, R.M. Moxham, F. Polcyn, G.H. Landis
1964, Science (146) 733-742
Aerial infrared-sensor surveys of Kilauea volcano have depicted the areal extent and the relative intensity of abnormal thermal features in the caldera area of the volcano and along its associated rift zones. Many of these anomalies show correlation with visible steaming and reflect convective transfer of heat to the...
Igneous rocks of the East Pacific Rise
A.E.J. Engel, C.G. Engel
1964, Science (146) 477-485
The apical parts of large volcanoes along the East Pacific Rise (islands and seamounts) are encrusted with rocks of the alkali volcanic suite (alkali basalt, andesine- and oligoclase-andesite, and trachyte). In contrast, the more submerged parts of the Rise are largely composed of a tholeiitic basalt which has low concentrations...
Distribution of narrow-width magnetic anomalies in Antarctica
John C. Behrendt
1964, Science (144) 993-999
Data for aeromagnetic profiles obtained in Antarctica during the 1963-64 austral summer were used together with earlier results to construct a map showing the areal distribution of narrow-width magnetic anomalies. Numerous anomalies are associated with known volcanic mountains in western Antarctica. A large area of few anomalies is probably a...
Pentaborate polyanion in the crystal structure of ulexite, NaCaB5O6(OH)6*5H2O
Joan R. Clark, Daniel E. Appleman
1964, Science (145) 1295-1296
Triclinic ulexite crystals contain isolated borate polyanions [B5O6(OH)6]3- related to the well known pentaborate polyanion [B5O6(OH)4]- by addition of two hydroxyl groups to two opposite B-O triangles. The isolated ulexite polyanions form the [B5O7(OH)4]n3n- chains previously found in crystals of the related mineral probertite, NaCaB5O7(OH)4·3H2O....
Isotopic composition of lead and strontium from Ascension and Gough Islands
P.W. Gast, G.R. Tilton, C. Hedge
1964, Science (145) 1181-1185
Isotopic composition of lead and strontium has been determined in a series of rock samples from two islands on the Mid-Atlantic Ridge. Both inter-and intra-island variations exist in the abundance of radiogenic isotopes of both elements. Lead from basalt of Ascension Island has a Pb206-Pb 204 ratio of 19.5, while...
Quality of surface waters in Utah, October 1962 to September 1963
U.S. Geological Survey
1964, Report
This data release is a compilation that presents water-quality data for the period October 1962 to September 1963 for the sites listed on page 2. These preliminary data are subject to revision before final publication in the annual series of U.S. Geological Survey Water-supply papers entitled Quality of surface waters...
Origin of precambrian iron formations
H. Lepp, S. S. Goldich
1964, Economic Geology (59) 1025-1060
A statistical study of the chemical composition of the Precambrian iron formations of the Canadian Shield affords a new approach to the origin of these unusual formations. The average total iron content of 2,200 samples from the literature and from unpublished mining company analyses is 26.7 percent Fe. The average Fe content for 16 iron formations in the United States and Canada...