12 Gompr. Zool I. Comprehensive Zoology. [1918] 
Spemann, H. Zur Geschichte und 
Kritik des Begriffs der Homologie. 
Kultur Gegenwart Allg. Biol. 1915 
(63-86). 188 
Spemann, H. Theodor Boveri. Arch. 
Entwickmech. Leipzig 42 1917 (243- 
260). 189 
Spillman, W. J. A method of cal- 
culating the percentage of recessives 
from incomplete data. [With reference 
to inheritance of left-handedness by 
E. Ramaley.] Amer. Nat. New York 
49 1915 (383-384). 190 
Stephenson, K. Zoogeographical in- 
vestigation of certain fjords in Southern 
Greenland, with special reference to 
Crustacea, Pycnogonida and Echino- 
dermata. Including a list of Alcyo. 
naria and Pisces. K^benhavn, Medd- 
Gr0nl. 53 1917 (229-378) map 30 figs. 
191 
Studnidka, F. K. Die Reduktion 
und die Regeneration des Cytoplasmas. 
Eine Theorie der Plasmogenese. 
Zeitschr. wiss. Zool. Leipzig 117 1918 
(654-726). 192 
Szymanski, J. S. Das Prinzip der 
kiirzesten Bahn in der Lehre von der 
Handlung. Biol. Centralbl. Leipzig 37 
1917 (282-287). 193 
Szymanski, J. S. Das Prinzip der 
raumausfiillenden Rezeptionsfahigkeit. 
Biol. Centralbl. Leipzig 37 1917 (471- 
476). 194 
Thulin, I. 1st die Grundmembran 
eine konstant vorkommende Bildung 
in den quer gestreiften Muskelfasem ? 
Arch. mikr. Anat. Bonn 86 1915 (318- 
327) pi. vii. 195 
Torraca, L. La rigcneraziono dellc 
cellule pigmentato cutaneo. Arch. Ent- 
wicklungsmech. Leipzig 40 1914 (131— 
150) pi. 196 
Turner, C. H. Recent literature on 
the behaviour of the higher inverte- 
brates. Psych. Bull. Princeton N.J. 
9 1912 (290-300). 197 
Unna, P. G. Die Sauerstofforte und 
Reduktionsorte. Eine histochemische 
Studie. Arch. mikr. Anat. Bonn 87 1 
1915 (96-150) pis. vii-xii. 198 
Ussing, Hj. Gopler, Koraller, Pig- 
hude, Havsvampe og S^punge fra Ban- 
ders Fjord. The Coelenterata, Eehino- 
derma, Porifera and Tunicata of the 
firth of Banders. K^benhavn Randers 
Fjords Naturhistorie 1918 (295-312) 
8 figs. 199 
Vries, H. de. Van amoebe tot 
mensch. [De l’amibe & l’homme.} 
Utrecht (A. Oosthoek) 1913 (18) 24 cm. 
200 
Vries, H. de. Intracellulaire pan- 
genesis. Nederlandsche bewerkingdoor 
F. H. van Hengelaar naar de Duitsche 
en Amerikaansche uitgave onder toe- 
zicht van den auteur. [La pangdnese 
intracellulaire. Traduction Holland - 
aiso par F. H. van Hengelaar d’apres 
les Editions allemando et amdricaino 
sous la surveillance de T auteur.] 
Amsterdam (Scheltema en Holkema) 
1918 (71) 26 cm. 201 
Walker, E. M. Bibliography of 
Canadian zoology (exclusive of ento- 
mology). Trans. R. Soc. Canada 10 
1917 sect. 4 (201-215). 202 
Walton, C. L. Some results of a 
survey of the agricultural zoology of 
the Aberystwyth area. Parasitology 
Cambridge 10 1918 (206-266). 203 
Walton, L. B. Organic evolution 
and the significance of some new evi- 
dence bearing on the problem. Amer. 
Nat. New York 52 1918 (521-547). 204 
Ward, H. B. and Whipple, G. C. [and 
others]. Fresh-water biology. New 
York 1918 (viii + 1111). 205 
Wasteneys, H. vide Loeb and 
Wasteneys. 
Werber, E. I. Experimental studies 
on the origin of monsters, ii. Regard- 
ing the morphogenesis of duplicities. 
J. Exper. Zool. Philadelphia 24 1917 
(409-436) 4 pis. 206 
Werber, E. I. Critical notes on the 
present status of the lens-problem. 
Biol. Bull. Woods Hole 34 1918 (219- 
249). 207 
Wesenberg-Lund, C. Om Plank- 
tonolien og dens eventuelle Betydning 
1 fedtstoffattige Tider. The plankton- 
oil and its contingent importance in 
times poor in fats. Kjjbenhavn Natu- 
rens Verden 2 1918 (9-19). 208 
Wesenberg-Lund, C. Fures^ens 
Bundfauna. The bottom -fauna of the 
Fures^, Sealand. K^benhavn Vid. 
Selsk. Skr., Raekke 8 3 1 1918 (135 174) 
2 figs. 209 
