16 The Significance of Sex. [Jan. 
Neither does the general belief that they drink train-oil appear 
to be supported by reliable evidence, and some authors in various 
localities especially deny it. 
I trust that I have presented sufficient evidence to show that 
the popular picture of the dwarfish Eskimo, dozing in an under- 
ground den, keeping up his internal heat by enormous meals of 
raw blubber washed down with draughts of lamp-oil, is based on 
exaggeration, to say the least, rather than on actual facts. 
THE SIGNIFICANCE OF SEX. 
BY JULIUS NELSON, 
EXPLANATION OF PLATES I—IV. 
The figures have been selected to show as great a variety as possible, that the unity 
which can be discovered may be a generalization of value. For the sake of clear- 
ness they have a drawn with as little elaborateness as possible, and to that extent 
are diagramm 
The F abbreviations have been used: 
Z. w. Z.—Zeitschrift fiir wissenschaftliche Zoologie. 
M. J.—Morphologisches Jahrbuch. 
_ Carnoy.—La Biologie Cellulaire, 1884. 
Biitschli.—“ Protozoa,” i in Bronn’s Classen und eee vie des Thierreichs. 
A. B.—Archives de Biologie—Beneden and Bam 
A. m. A.—Archiv fiir mikroskopische nese 
A. Z. E. G.— Archives de Zoologie expérimentale et générale. 
‘Kent.—Manual of Infusoria, 1881. 
M. 2. S. N _—Mittheilung aus der BR wee TER zu Neapel. 
A. A. P.—Archiv für Anatomie und Physiol 
Flemming.—Zellsubstanz, Kern, und Zalltheileng, ree 
Q. J. M. S.—Quarterly Journal of Microscopical Scien 
A. z.z. I. W.—Arbeiten aus der zoologisch-zootomisch Taa zu Würzburg. 
A. z. I. U. W.—Arbeiten aus zoologischen Institut, Universitat, Wien. 
Haeckel. —“ Sretne 1862. 
Pe a oe P79: 
Ét MUCS 
‘Stein. Srey der Inkssionethiesehen; 1867, "1882. i 
: Petare I. 
Fic. 1. par ichornit—Gruber,* Z. w. Z., xxxviii—The protoplasm 
is in the form of a net-work with omnes nodes, many of which bear nuclei in 
various stages of karyokinesis. 
_ Fic. 2, Calcarina spengleri—Biitschli, na xi—A nucleus surrounded by re-. 
ic ( protoplasm is shown. It contains large and several small nucleoli, all 
wi z te pf thor of he pipen fo which the 
? y refer to the discoverer of the species. 
