50 Gen. Sub. 
I. GENERAL SUBJECTS. 
The recapitulation doctrine; Cunningham (144). — Recapitulation in 
Ontogeny; Hyatt (364). Criticism of Beard’s views; Houssay (361). — 
Recapitulation in metamorphoses; Houssay (361). — Limitations of Re- 
capitulation ; Thilenius (704). 
Kainogenesis and palingenesis ; Mehnert (490). 
Remarks on mosaic theory of development; Child (114a). — T heory of 
development, mechanics and biology; Hertwig (348). — Developmental 
mechanics, critical review; Albrecht (3). — Hertwig on mechanics and 
biology; Veley (721). — Regulation of growth and differentiation in Tubu- 
laria\ Driesch (165). — “Developmental mechanics”; Haacke (304). — 
Cellular differentiation in development; Herlitzka (344). — Formative 
forces operative in growth and development; Merkel (491). — Internal 
secretions considered in relation to variation and development ; Mathews 
(481). 
Critical period in Marsupials, and general considerations in relation to 
it; Beard (40). — Birth-period of Trichomrus vulpecula (marsupial) coin- 
cides with critical period ; Beard (42). — Critical period, full definition 
of ; Beard (42). — Critical period in the development of the horse ; Ewart 
(199). 
Effects of pelagic spawning habit on life-histories of fishes ; Masterman 
(479). 
b. Particular Oi'gans and Parts. 
Formation of germinal layers in vertebrates; Brauer (84). — Forms of 
cleavage; Conklin (130). — Germ-tracks in Cyclops , and the origin of genital 
cells ; Haecker (309 & 310).— Protoplasmic connections between blasto- 
meres; Hammar (313). — Cleavage considered from the point of view of 
developmental mechanics ; Mead (489). — Segmentation of vertebrate ova, 
summary ; Sobotta (672). — Gastrulation in Amphioxus and related prob- 
lems; Sobotta (671). —Gastrulation in Vertebrata; Sobotta (670). — A 
double gastrular invagination in lizard; Kopsch (409). — On the absorp- 
tion of the yolk during embryonic life ; Schenk, S. L. (648). 
Theory of the mesoderm, reprints ; Rabl (589). — Development of meso- 
derm and body cavity; Montgomery (515). 
Development and evolution of nervous system; Schaper (643). — Ac- 
cessory optic vesicles; Locy (446). — Development of auditory vesicle in 
Vertebrata; Poli (573). — Neurenteric canal, its formation and import; 
Kopsch (410). 
Development of Vertebrate skull ; Sewertzoff (665). — Development of 
vertebral column ; Gadow (248), Gaupp (262), Hay (322). — Mechanism of 
the formation of the osseous grooves for tendons, — the result of pressure 
of tendon on bone ; Regnault, F. (598). 
Early development of the liver; Hammar (314). — Development of liver 
and adjacent structures ; Swaen (697). — Development of liver and pancreas ; 
Bracket (75). — Double ventral rudiments of the pancreas; Hammar 
( 315). — Development of pleural cavities and pleuro-pericardiac membrane; 
Brachet (74). — Of thyroid and associated glands; Souli^ & Verdun 
( 674). — Pronephros and mesonephros ; Semon (664). 
c. Experimental . 
Text-book of experimental embryology ; Haacke (304). — Aims and 
method of experimental embryology ; Roux (626 & 627). — Report on recent 
work related to experimental embryology, published in English ; Driesch 
( 166). — Applicability of experiment in study of development; Butschli 
( 94 )- 
Factors in development, studied experimentally in developing ova of 
fishes and Amphibia; Bataillon (36). — Influence of light on development 
