A Comparative Quantitative Study of the Common Elements Found in the Hackenberry Page: 53
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error excepted. Ie to the fact that the soil near the Denton tree is
much sandier than that of the Van Zandt tree, it was thought that there
was a greater possibility for sand to blow into the bark; therefore more
silicon should be found in the bark than was chemically combined in its
structure. The data on page 41 thow that the other parts of the Van
Zandt tree contain lees silicon than those of the Denton tree. But if
there is more silicon in the soil near the Denton tree than there is near
the Van Zandt tree, the question arises, why do not these parts contain
more silicon as well as the bark, if there is a variation? This may be
answered by remembering the fact that the presence of other elements in
the soil many times has a great deal to do with the amount of ones partio-
ular element that is utilised.0
To remove the doubt about hether or not the data on silicon was
experimentally correct on the bark of the two trees, another analysis
was mrde. The samples used weighed 20.000 g., and the sanm procedure
as followed as is given on page 38. Two samples of the bark of each
tree were run, and the following results were obtained.
TABIB 15
CHECK OW TiHE SILICON DETERMINATION OF THE BARK
Weight of SiO Per Cent of Silicon
Tree Average
No. 1 No. 2 No. 1 No. 2
Denton Tree 0.2120 0.2115 0.495 0.494 0.495
Van Zandt Tree 0.2005 0.2050 0.468 0.479 0.474
J. Ind. . Chem., XIII (Oct., 1921), 933.
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Bailey, Duward W. A Comparative Quantitative Study of the Common Elements Found in the Hackenberry, thesis, June 1939; Denton, Texas. (https://digital.library.unt.edu/ark:/67531/metadc32924/m1/58/: accessed April 19, 2024), University of North Texas Libraries, UNT Digital Library, https://digital.library.unt.edu; .