[Footnotes]

[Footnotes]
1
Payne, M. A. 1938. " The Third Dimension in the Teaching of Biology, " Transactions Kan- sas Academy of Science, Vol. 41, 1938, p. 295
Payne
295
41
Transactions Kansas Academy of Science
1938
4
Newman, H. H. 1926. Outlines of General Zoology, Macmillan, p. 123
Newman
123
Outlines of General Zoology
1926
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