5 Gompr. Zool. 
Titles. 
0000 
Bower, F. O., Kerr, J. G. and Agar, 
W. E. Lectures on sex and heredity 
delivered in Glasgow, 1917-18. London 
(Macmillan) 1919 (vi + 119). 22 
Buhigas, R. S. Replica a la nota y 
observaciones do D. F. de Buen a la 
Mcmoria “ La Purga del mar o HemU' 
tolalasia.'^ Bol. Soc. Espah. Hist. Nat. 
Madrid 18 1918 (348-356). 23 
Butterfield, W. R. Notes on the local 
fauna, flora and meteorology for 1918. 
Hastings Nat., St. Leonards 3 No. 2 
1919 (1-20). 24 
Castle, W. E. Docs Evolution occur 
exclusively by loss of genetic factors ? 
Amer. Nat. 53 1919 (555-558). 25 
Chapman, H. G. Presidential address. 
Proc. Linn. Soc. N.S.W. Sydney 44 
1919(1-35). / 26 
Chumley, J. The fauna of the Clyde 
sea area, being an attempt to record the 
zoological results obtained by the late 
Sir John Murray and his assistants on 
board S.Y. “ Medusa ” during the years 
1884 to 1892. Glasgow Univ. Press 1918 
(vi + 200) map. 27 
Clark, T. H. A section in the Trenton 
limestone at Martinsburg, New York. 
Bull.Mus. Harvard Coll. 63 1919 (20 pp.) 
pi. 28 
Classen, Th. Do sydrussisko Haves 
Biologi. The biology of the Caspian 
and the Black Sea. Kobonhavn Googr. 
Tids. 25 1919 (26-37) with 5 figs. 29 
Clementi, A. Ricercho sull’ arginasi : 
V. sulla presenza doll’ arginasi ncll’ 
organismo di qualche invertebrato. 
Atti Ace. Lincei Rend. Roma 27 I 1918 
(299-302). 30 
Collett, M. E. Resistance'of cilia to 
cytolytic agents. Biol. Bull. Woods 
Hole 36 1919(423-428). 31 
Collin, A. Wilhelm Weltner, ein 
Nachruf. Mitt. zool. Mus. Berlin 9 
1918 (61-70). 32 
Conklin, E. G. Has progressive 
evolution come to an end ? J. Amer. 
Mus. N. H. New York 19 1919 (35-39). 
33 
Dakin, W. J. The Percy Sladen trust 
expeditions to the Abrolhos islands. 
Report 1. Introduction . . . the 
(N-13799 q) Q 
formation of the islands. J. Linn. Soc. 
zool. London 34 1919 (127-180). pis. x- 
xiv. 34 
Danforth, C. H. Evidence that germ 
cells are subject to selection on the basis 
of their genetic potentialities. .Journ. 
Exper. Zool. Philadelphia 28 1919 (385- 
412). 35 
de Buen, F. Sobre la coloracion roja 
del agua en las Rias bajas y la bologia 
de la sardina. Bol. Soc. Espan. 
Hist. Nat. Madrid 18 1918 (327-331). 36 
Delage, Y. Suggestion sur la nature 
et los causes do I’herMit^ segregative 
(caracteres mendeliens) et do I’heredite 
agregative (caracteres non mendeliens). 
C. R. Ac. Sci. Paris 168 1919 (30-36). 37 
Dendy, A. [and others]. Animal life 
and human progress. London (Con- 
stable) 1919 (ix + 227). 38 
Detwiler, S. R. The effects of trans- 
planting limbs upon the formation of 
nerve plexuses and the development of 
peripheral neurones. Proc. Nat. Ac. 
Sci. Washington 5 1919 (324-331). 39 
Doncaster, L. An introduction to the 
study of cytology. Cambridge (Uni- 
versity Press) (xiv -p 280) xxiv pis, 40 
Driesch, H. Studien ueber Anpassung 
und Rhythmus. Biol. Zentralbl. 39 
1919 (433-462). 41 
Droogleover Fortuyn, A. B. Over 
vortebratonzonuwen mot den bouw van 
evertobratonzonuwen. [On two nerves 
of vertebrates agreeing in structure with 
the nerves of invertebrates.] Amster- 
dam Versl. Wis. Nat. Afd. K. Akad.Wet. 
27 1919 (783-784) (Dutch). Amsterdam 
Proc. Sci. K. Akad. Wet. 21 1919 (756- 
758) (English). 42 
Dubois, E. De beteekenis der grootte 
van het neuron en zyn deelen. [The 
significance of the size of the neurone 
and its parts.] Amsterdam Versl. Wis. 
Nat. Afd. K. Akad. Wet. 27 1919 (503- 
520) (Dutch). Amsterdam Proc. Sci. K. 
Akad. Wet. 21 1919 (711-729) (English). 
43 
Dubois, Raphael. A propos de 
rochorches r^centes de M. Newton 
. Harvey sur la biophotogen^se. Paris 
C. R. Acad. sci. 165 1917 (33-35). 44 
Diirken, B. Einfuhrung in die 
Experimentalzoologic. Berlin 1919 
[not seen by Recorder]. 45 
a 1-2 
