Experiment Station Record, Volume 67, July-December, 1932 Page: 79
xix, 895 p. ; 24 cm.View a full description of this book.
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1932] AGRICULTURAL ENGINEERING 79
was an average reduction of 20 per cent in grain fed to work horses, 11 per
cent in hay, and an increase of 29 per cent in pasture, and also an increase
of 2.2 years in the working life of horses.
Vertical expansion of soils under the influence of cultivating implements
[trans. title], M. RINGELMANN and J. BOURDELLE (Ann. Agron. [Paris],
n. ser., 1 (1931), No. 1, pp. 82-93, figs. 4).-This is a joint contribution from
the Central Station for the Testing of Agricultural Machinery at Paris and
the Central Station of, Agricultural Physics of Versailles. It reports studies
of the vertical swelling of a yellow silt soil high in lime and low in humus
contents and of a black siliceous clay soil low in lime and high in humus contents,
under the influence of spading and hoeing to a depth of 15 cm (6 in.).
The results show a vertical swelling of the former soil varying from 14 to
23 mm and of the latter varying from 17 to 31 mm under the influence of
spading.
Apparently moisture content and the presence or absence of gravel and
stones, but not soil type, are the important factors in this influence of tillage.
Pumping machines and their motors [trans. title], A. BLANC (Ann. Ecole
Natl. Agr. Montpellier, n. ser., 21 [1931], No. 1, pp. 36-52).-This is a technical
analysis of pumps for the elevation of subterranean water for irrigation and
of the adaptation of animal, wind, and mechanical motive power.
Ammeter and pressure gauge comparisons in the operation of the
viscolizer (South Dakota Sta. Rpt. 1931, p. 22).-The electric power requirements
in the operation of a viscolizer as measured by different instruments
are compared against actual pressures registered on a liquid pressure gauge.
Electricity on the farm and in rural communities (revised edition),
compiled by L. C. PRICKETT (C. R. B. A. Bul. [Chidago], 7 (19-131), No. 1, pp. 332,
figs. 431).-This is a contribution from the Committee on the Relation of
Electricity to Agriculture. It presents material which represents a summary
of the best available information at the command of the committee on the
subject. Much of this material has been obtained from the State agricultural
experiment stations.
The construction of cow-houses ([Gr. Brit.] Min. Agr. and Fisheries Bul.
40 (1931), pp. 22, pEs. 2, figs. 9).-This is a revision of an earlier publication
(E. S. R., 53, p. 390), and gives practical information on the planning and
construction of cattle barns from the English viewpoint. Suggested detailed
drawings for specific structures are included, together with working plans
for single- and double-range cow barns.
Apple storage ([Ohio Sta., Co. EBxpt. Farms Rpts.] 1930, Belmont Co. Farm,
pp. 3, 4).-Practical information is given on the planning and construction of
an economical and efficient air-cooled apple storage as constructed on the
experimental farm at a cost of about 10 cts. per bushel capacity.
Effect of priming-coat reduction and special primers upon paint service
on different woods, F. L. BROWNE (Indus. and Engin. Chem., 22 (1930), No. 8,
pp. 847-854, figs. 4).-Studies conducted at the U. S. D. A. Forest Products
Laboratory on the effect of methods of priming on the durability of paint
coatings on seven species of softwoods are reported.
It was found that a marked variation in .the proportions of linseed oil and
of turpentine in the priming coat failed to alter appreciably the durability of
the coatings on any of the seven woods. The durability of paint coatings on
southern cypress was not improved by replacing turpentine with benzene in
the reduction of the priming coat.
The incorporation of red lead in priming paints hastened the flaking of the
coatings from summer wood. -A special priming paint containing zinc dust
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General Index to Experiment Station Record, Volumes 61 to 70, 1929-1934 (Book)
A topical, alphabetically arranged index to volumes 61-70 including experiment station records, publications reviewed, and foreign publications. In has a list of all editorial notes from the referenced volumes.
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United States. Office of Experiment Stations. Experiment Station Record, Volume 67, July-December, 1932, book, 1933; Washington D.C.. (https://digital.library.unt.edu/ark:/67531/metadc5089/m1/98/: accessed April 19, 2024), University of North Texas Libraries, UNT Digital Library, https://digital.library.unt.edu; crediting UNT Libraries Government Documents Department.