Known as the Early Journal Content, this set of works include research articles, news, letters, and other writings published in more than 200 of the oldest leading academic journals. The works date from the mid--seventeenth to the early twentieth centuries. We encourage people to read and share the Early Journal Content openly and to tell others that this resource exists. People may post this content online or redistribute in any way for non--commercial purposes. Read more about Early Journal

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... ntent at http://about.jstor.org/participate--jstor/individuals/early-journal--content. JSTOR is a digital library of academic journals, books, and primary source objects. JSTOR helps people discover, use, and build upon a wide range of content through a powerful research and teaching platform, and preserves this content for future generations. JSTOR is part of ITHAKA, a not--for--profit organization that also includes Ithaka S+R and Portico. For more information about JSTOR, please contact support@jstor.org. Pneumatophores.-From an examination of the tissues of vertical apogeotropic branches of the roots of Terminalia Arjuna, a large tree of Central India, 23 PAMMEL, L. H., and FOGEL, ESTELLE D., The underground organs of a few weeds. Proc. Iowa Acad. Sci. i6:pp. 7. p/s. 5. 1900. 24 FRIMMEL, FRANZ V., Die untere Kutikula des Taxits-Blattes ein Lichtreflektor Oester. Bot. Zeitsch. 6i 2i6-223. figs. 4. 19II. 25 PORSILD, MORTEM P., The plant life of Hare Island off the coast of West Greenland. Saertryk af Meddelelser om Gronland 47:252-274. figs. IO. Kobenhavn: Bianco Lunos. 9Io0.