Salensky, W. — Morphogenetische Studien an Würmern.

St. Petersbourg, Académie Impériale des Sciences de St.-Pétersbourg, 1905-1912. Five parts in three. Folio. 525 pp., 28 lithographed plates. Original, uniform printed wrappers. = A seldom-seen publication. In two part. The first contains four studies in two volumes, viz. I. über den Bau der Echiuruslarve; and II-IV, as follows: II. Über die anatomie der Archianneliden nebst Bemerkungen über den Bau einiger organe des Saccocirrus papillocercus; III. Über die Metamorphose des Polygordius ponticus n. sp. mihi, and IV. Schlussbetrachtungen. The second contains a single study, Über die morphogenese der Nemertinen. I. Entwicklungsgeschichte der Nemertine im inneren des Pilidiums. One part signed by the author and one signed leaf by the author as the director of the biological station in Sebastopol. Partly uncut. One spine split; edges a bit frayed; otherwise a very good, clean set. Cat. BM(NH) p. 2381 (under Zalinskii).