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Publication Extents

Not all publications have extents, not all extents are completely accurate
Geochemical field method for determination of nickel in plants
L.E. Reichen
1951, Analytical Chemistry (23) 727-729
The use of biogeochemical data in prospecting for nickel emphasizes the need for a simple, moderately accurate field method for the determination of nickel in plants. In order to follow leads provided by plants of unusual nickel content without loss of time, the plants should be analyzed and the results...
Determination of fluorine in organic compounds: Microcombustion method
H. S. Clark
1951, Analytical Chemistry (23) 659-661
A reliable and widely applicable means of determining fluorine in organic compounds has long been needed. Increased interest in this field of research in recent years has intensified the need. Fluorine in organic combinations may be determined by combustion at 900° C. in a quartz tube with a platinum catalyst,...
Fluorometric determination of zirconium in minerals
W.C. Alford, L. Shapiro, C. E. White
1951, Analytical Chemistry (23) 1149-1152
The increasing use of zirconium in alloys and in the ceramics industry has created renewed interest in methods for its determination. It is a common constituent of many minerals, but is usually present in very small amounts. Published methods tend to be tedious, time-consuming, and uncertain as to accuracy. A...
Aromatic fluorine compounds. IV. 1,2,3,5-Tetrafluorobenzene
G. C. Finger, F.H. Reed, R.E. Oesterling
1951, Journal of the American Chemical Society (73) 152-153
The preparation of 1,2,3,5-tetrafluorobenzene and some of its intermediates is described. Cuprous oxide as a catalyst was used to advantage in the hypophosphorous acid deamination method....
Conservation: Where we stand: Review of Water, land, and people
Luna Bergere Leopold
1951, The Living Wilderness (36)
A distinguished conservationist, just returned from more than a year in those Pacific islands held in trust by the United States, reports that representatives of the government there are nearly completely concerned with the maintenance of an administrative organization. Actual advances in matters of land use, of maintaining the material...
Cooperative investigation of precision and accuracy in chemical analysis of silicate rocks
W.G. Schlecht
1951, Analytical Chemistry (23) 1568-1571
This is the preliminary report of the first extensive program ever organized to study the analysis of igneous rocks, a study sponsored by the United States Geological Survey, the Massachusetts Institute of Technology, and the Geophysical Laboratory of the Carnegie Institution of Washington. Large samples of two typical igneous rocks,...
Downstream movement of recently transformed sea lampreys, Petromyzon marinus, in Carp Lake River, Michigan
Vernon C. Applegate, Clifford L. Brynildson
1951, Transactions of the American Fisheries Society (81) 275-290
In order to obtain more precise information concerning the downstream movement of recently transformed sea lampreys, a trapping device was operated in the Carp Lake River, Emmet County, Michigan, from October, 1948, to July, 1951. The period of downstream migration typically extends from the latter part of October to...
Ground-water situation in Oregon
R. C. Newcomb
1951, Report
The water that occurs beneath the land surface follows definite and well-known rules of hydraulics, the same as water on the surface. However, ground water must be studied by methods, some of which are unique to that type of water occurrence, in order to evaluate the part it plays in...
Determination of molybenum in soils and rocks: A geochemical semimicro field method
F. N. Ward
1951, Analytical Chemistry (23) 788-790
Reconnaissance work in geochemical prospecting requires a simple, rapid, and moderately accurate method for the determination of small amounts of molybdenum in soils and rocks. The useful range of the suggested procedure is from 1 to 32 p.p.m. of molybdenum, but the upper limit can be extended. Duplicate determinations on...
Aromatic fluorine compounds. V. 1,3,5-Trifluorobenzene
G. C. Finger, F.H. Reed, J.L. Finnerty
1951, Journal of the American Chemical Society (73) 153-155
The synthesis and properties of 1,3,5-trifluorobenzene, its intermediates and some of its derivatives have been described....