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The contents of this volume are, 1, An undescribed Acranate by E. A. Andrews; 2, Contributions to the Embryology of Chiton, by Maynard M. Metcalf; 3, The formation of the so-called Cypress-knees on the Roots of the Taxodium Distichum, by John P. Lotsy; 4, On the Origin and Development of the Stichidia and Tetrasporangia in Dasya Elegans, by B. W. Barton. This volume is edited by Prof. H. N. Martin and Prof. William K. Brooks.
Johns Hopkins University, Baltimore. JAMA. 1893;XXI(18):668. doi:10.1001/jama.1893.02420700036020
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