Selenka

Ever heard of the Missoula flood or the Selenka expedition?

On Thursday, the Legg report will be published along with... 2008

The crowns of the teeth are very carefully drawn in this figure, which is from a plate published by Professor Selenka.

More Science From an Easy Chair 1888

(From Selenka.) a animal pole of the blastula, v vegetal pole, en mother-cell of the entoderm, ex ectodermic cells, s spermia, ib unnucleated yelk-balls

The Evolution of Man — Volume 1 Ernst Heinrich Philipp August Haeckel 1876

(From Selenka) b the globular embryonic vesicle, a the round germinative area, b limit of the ventral plates, r dorsal shield, v its fore part, u the first primitive segment, ch chorda, chr its fore-end, pr primitive groove (or mouth).

The Evolution of Man — Volume 1 Ernst Heinrich Philipp August Haeckel 1876

Selenka, first into two, then four, then eight equal cells; hence the segmentation is at first equal or homogeneous.

The Evolution of Man — Volume 1 Ernst Heinrich Philipp August Haeckel 1876

(From Selenka.) (Back view from above.) stz stem-zone or dorsal shield (with eight pairs of primitive segments), pz parietal or ventral zone, ap pellucid area, ao opaque area, hh halves of the heart, v fore-end, h hind-end.

The Evolution of Man — Volume 1 Ernst Heinrich Philipp August Haeckel 1876

Selenka, who has published a very thorough Study of the

The Evolution of Man — Volume 1 Ernst Heinrich Philipp August Haeckel 1876

There is only one of these that need be specially mentioned -- the important fact, established by Selenka in

The Evolution of Man — Volume 1 Ernst Heinrich Philipp August Haeckel 1876

But the remarkable discoveries published by the distinguished zoologist Selenka in 1890 proved that man shares these peculiarities of placentation with the anthropoid apes, though they are not found in the other apes.

The Evolution of Man — Volume 1 Ernst Heinrich Philipp August Haeckel 1876

We now know from Selenka that the much-discussed ventral pedicle is merely the pedicle of the allantois, combined with the pedicle of the amnion and the rudimentary pedicle of the yelk-sac.

The Evolution of Man — Volume 1 Ernst Heinrich Philipp August Haeckel 1876