IT may, perhaps, not be generally known that pollen of flowers affords a convenient example of the circulation of protoplasm. If pollen from a fox-glove be placed in a solution of sugar at ordinary ...
Proceedings of the National Academy of Sciences of the United States of America, Vol. 2, No. 9 (Sep. 15, 1916), pp. 539-543 (5 pages) ...
WHEN one of the most powerful representatives of the Transcendental school of philosophy, himself possessing a knowledge of biological science, consents to do battle against the modern doctrines ...
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