Embryology of the Lower Vertebrates

Abstract

THIS volume marks the tendency to increased specialisation in text-books, for it is an embryology of the lower Vertebrates. It also fills an obvious gap, for Balfour's classic work is acknowledged to be out of date, the large cooperative treatise now being edited by O. Hertwig is on an altogether bigger scale and different plan, the works of Bonnet, Kollman, Minot and O. Schultze deal with man or with mammals, and even in the well-known text-books of Hertwig and Milnes Marshall the lower Vertebrates are somewhat overshadowed by their successors, the Amniota. Thus there is room for Prof. Ziegler's volume, at which he has laboured, he tells us, for a dozen years. The result seems to us to justify his carefulness.

Lehrbuch der vergleichenden Entwickelungsgeschichte der niederen Wirbeltiere, in systematischer Reihenfolge und mit Berücksichtigung der experimentellen Embryologie bearbeitet.

By Prof. Heinrich Ernst Ziegler. Pp. xii + 366; 327 figures and a coloured plate. (Jena: Gustav Fischer, 1902.) Price 10 marks.