3 Compr. Zool. 
Titles. 
0000 
I.— TITLES. 
Adams, C. C. Migration as a factor 
in evolution : its ecological dynamics, 
ii, iii. The migrational factors in evolu- 
tion. Amor. Naturalist New York 53 
1919 (55-78) 5 figs. 1 
Agar, W. E. Cytology : with 
special reference to the metazoan 
nucleus. London Macmillan 1920 
(xii -f- 224). [Review Nature 105 
p. 482]. 2 
Allen, E. J. Report on investiga- 
tions on the western end of the English 
Channel. Prepared by E. J. Allen. 
Copenhague Publ. de circ. 72 1920(1-12) 
3 
Allen, W. E. A quantitative and 
statistical study of the plankton of the 
San Joaquin River and its tributaries 
in and near Stockton, California, in 
1913. Univ. Calif. Publ. Zool. 22 1920 
(1-292). 4 
Allen, W. E. Some micro-plankton 
from Salton sea. Scienco New York 51 
1920 (487). 5 
[Anon.] Results of an expedition to 
Korinchi Peak, Sumatra. Journ. Fed. 
Malay States Museum 8 1919 and 1920. 
(incomplete). 6 
[Anon.] Tables alphabetique et 
systematique des cinquante premiers 
volumes des Annales et Bulletins de la 
Soci6te royale zoologique et malaco- 
logique de Belgique, 1865-1920. Ann. 
Soc. zool. malac. Belgique Bruxelles 
50 1920 deuxieme part. (1-116). 7 
Barbour, T. Comments on a recent 
check-list. Amer. Nat. Lancaster Pa. 
54 1920 (284-288). 8 
Bateson, W. Genetic segregation 
(Croonian Lecture). Proc. R. Soc. 
London Ser. B 91 1920 (358-368). 9 
Bateson, W. Genetic segregation 
(abstract of Croonian lecture). Nature 
London 105 1920 (531). 10 
Bateson, W. Prof. L. Doncaster. 
Obituary. Nature London 105 (461 
& 462). 11 
Bather, F. A. Fossils and life. The 
differentia of paleontology. Science 
New York 52 1920 (257-264) ; Nature 
London 106 (161-164 192-195). 12 
Baudin, L. Contribution &r6tudo de 
la repartition vorticale du plancton dans 
lo L6man. Bull. Soc. vaud. Lausanne 
52 1919 (275-315). 13 
Beauchamp, P. de. Recherches 
biogeographiques sur la zone des marges 
1 ile de Re. C. R. Ac. Sci. Paris 171 
1920 (1233-1236). 14 
Berry, E. W. The o volution of 
flowering plants and warm-blooded 
animals. Amer. J. Sci. New Haven 
Conn. Ser. 4 49 1920 (207-211). 15 
Boas, J. E. V. Lserebog i Zoologien 
naermest til Brug for Studerendeog 
Laerere. Textbook of zoology (5 ed.) 
I— III. Kobenhavn Gyldendal 1920 738 
pp. with 655 fig. 25 x 16 cm. Price 
Kr. 32,00. 16 
Bruce, W. S. Scottish national 
antarctic expedition. Report on the 
scientific results of the voyage of S.Y. 
Scotia during the years 1902, 1903 and 
1904. Vol. 7 pts. 1-13 Invertebrates. 
Edinburgh (viii -f 323) 16 pis. 17 
Buchanan, A. Wild life in Canada. 
London Murray 1920 (xx -f- 264). 
[Review Nature 105 p. 426.] 18 
Bugnion, E. Les cellules sexuelleset 
la theorie de 1’ heredity. Riviera 
Scientifique Nice 5 (2) 1918 (33-63) 
figs. 19 
Carpenter, G. D. H. A naturalist on 
Lake Victoria, with an account of 
sleeping sickness and the tse-tse fly. 
London 1920 (xxiv -f- 333) 2 pis. etc. 20 
Casey, T. L. Remark on family 
names. Science New York 52 1920 
(491). 21 
Castle, W. E. Does evolution occur 
exclusively by loss of genetic factors ? 
Amer. Naturalist New York 53 919 
(555-558). 22 
