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Douglas H. Campbell
New Series, Vol. 100, No. 2592 (Sep. 1, 1944), pp. 179-181
Published by: American Association for the Advancement of Science
Stable URL: http://www.jstor.org/stable/1673535
Page Count: 3
You can always find the topics here!Topics: Fossils, Plants, Genera, Continents, Liverworts, Flora, Flowering plants, Geology, Plant spores, Conifers
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Science © 1944 American Association for the Advancement of Science