<i>Studien an intracellularen Symbionten. I. Die intracellularen Symbionten der Hemipteren</i> . By Dr. Phil. Paul Buchner, Privatdocent in the University of Munich. Reprinted from " Archiv für Protistenkunde," Vol 26. Jena, 1912. Pp. 116, 12 plates and 29 text figures.
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