SCIENTIFIC SUMMARY. 
563 
British Polyzoa . — Notwithstanding the valuable researches of Busk, 
Saars, and others, a good deal remained to be done in the way of describing 
our native polyzoa. That veteran naturalist, Mr. Joshua Alder, has now, 
however, taken the matter up, and, as the fruits of his present inquiries, 
gives us descriptions of a new genus ( Palmicellaria) and two new species 
(P. elegans and Eschara lorea). He gives the following description of the 
new genus : polyzoary erect, calcareous, inarticulate, cylindrical, smooth, 
branching dichotomously ; cells disposed in four longitudinal alternate 
series, those in the two opposite series being on the same level ; apertures 
circular, opening vertically within a slight concavity, with a broad, pro- 
jecting palmate expansion in front, bearing an avicularium. This genus, 
in which as yet no ovi-cells have been observed, evidently occupies a 
position between Cellepora and Quadricellaria. — Vide Quarterly Journal 
of Microscopical Science, April, 1864. 
Are Zoosperms secreted in the Ovary of the Snail ? — This question is 
answered in the affirmative by Mr. Sanders. The only evidence, however, 
which he adduces is, that he observed the zoosperms within the egg-form- 
ing sac. It is well known to comparative anatomists that they are fre- 
quently found in that locality ; but that is no argument in support of the 
assertion that the mollusk in question is hermaphrodite. As well might 
Mr. Sanders assume that because zoosperms are found in the ovaria of 
vertebrates, these animals are also androgynous. Their presence merely 
indicates that the ova are about to undergo fertilization. The zoosperms 
in the ovary are invariably found in the isolated state ; but when taken 
from the sperm-sac they are found in clusters. This fact is quite suffi- 
cient to demonstrate to all reflecting persons, that the sperm, wherever it 
be first secreted, is not formed in the ovary. — Vide Quarterly Journal of 
Microscopical Science, April, 1864, and October, 1861. 
Zoology and Music . — Our contemporary, the Microscopical Journal, is 
not exclusively devoted to mere scientific objects. For example, we learn 
from a report of the proceedings of the Hull Microscopical Society that 
“ to add to the pleasures of the evening a miscellaneous selection of music 
was performed at intervals, several accomplished local amateurs being 
assisted by Fraiilein Eyserbeck and Fraiilein Reichmann. The first 
mentioned of these ladies sang exquisitely, and the latter also displayed 
great skill as a pianist, and the applause which followed their perforamnce 
was appreciated by, we should say, as critical an audience as it would 
be possible to bring together in Hull ! ” 
The Upper Jaw of the Greenlander. — Dr. C. Carus contributed a paper 
to the last number of the Anthropological Review, in which he describes 
some peculiar features observable in the upper jaw of a Greenlander’s skull. 
In the first part of his Atlas on Cranioscopy, which was published in 1843, 
he mentioned that in the skull of a Greenlander figured therein, he had 
found a decided separation between the upper jawbone and the inter- 
maxillary. This separation resembled that seen in the foetal skull, and in 
quadrupeds, and hence indicated an approach to the lower animals. Since 
that, he was fortunate enough to obtain another Greenland skull, and in 
it he perceived exactly the same conformation of parts seen in the first. 
If this character should prove common to all Greenlander skulls, it would 
