CONTENTS. IX 



PAGE 



Vayssiere, A. — Double Egg in Porbeagle Shark 294 



Baumeister, L. — Egg of Rhinophis 294 



Duesberg, J. — Mitochondrial Elements of Germ-cells anal Chondriosomes of Em- 

 bryonic Cells 294 



Abel, AVilliamdja — Development of Autonomic Nervous Mechanism of Bird's Ali- 

 mentary Canal -94 



Jolly, J. — Development of Lymphatic Ganglia of Duck 294 



Kuntz, Albert — Role of Vagi in Development of Sympathetic Nervous System .• 295 



Panschin, B. A. — Cranial Nerves of Pike 295 



Kerr, J. Graham — Development of Alimentary Canal in Lepidosiren and Proto- 



pterus 295 



Fuhrmann, O. — Hermaphroditism in Toads . .. 296 



Hart, D. Berry — Reproductive Organs of Free-Martin 296 



Achard. C. H., Henri Benard, & Ch. (tagneux — Leuco-reaction in Pregnancy .. 296 



Loisel, Gi stave — Influence of Male Parent in Heredity 296 



Pearl, Raymond, & Frank M. Surface — Use of Selection Index Numbers in 



Breeding 2'. >6 



Kusso — Determination of Sex 441 



Fellner, O. O. — State of Ovary during Pregnancy 441 



Kohlbrdgge, J. H. F. — Spermatozoa entering a Blastula 442 



Maximow, A. — Development of Blood 442 



Hertwig, Oscar — Role of Nucleus in Heredity 442 



Lecaillon, A. — Segmentation of Unfertilised Egg of Fowl 442 



Widakowich, Victor — Early Stages in Development of Rat 442 



Low, Alex. — Ossification of Human J. over Jaw 44M 



Tims, H. W. Marett — Seal-embryos 443 



Belogolowy, J. — Development oi Cranial Nerves in Birds 443 



Meyer, Ernst — Development of Blindworm 443 



Marechal, J., & A. de Saedeleer — Oogenesis in Raiadee 44;; 



Glaesner, L., & Marc de Selys-Longchamps — Segmentation and Gastrulatiou 



in Lamprey 443 



Legros. Robert — Development of Nephridium in Amphioxus 44:; 



Paris, Paul — Hybridisation of Wolf and Dog 444 



Guveb, M. F. — Plumage of Hybrids between Guinea-fowl and Fowl 444 



Waterston, D., & A. Campbell Geddks — Development of Penguin 444 



Pearl, R., & F. M. Surface — Fertility and Hatching of Eggs 555 



Pearl. R.. & M. R. Curtis — Reproduction in the Domestic Fowl 556 



Mietens, Harald — Origin of Blood in Toad 556 



Gallardo, Angel — Modern Study of Heredity 557 



Goggio, E.— Experiments on Tadpoles 557 



Meves, Fr. — Male Mitochondria in Fertilized Ovum 557 



Przribram, H. — Organogenefic Capacity 7"4 



Wilson. James — Inheritance of Quantity and Quality in Cow's Milk 704 



Cuexot, L., & L. Mercier — Heredity in Connection with Cancer 705 



Guthrie, C. ( . — Engrafting Tissues 705 



,, Engrafting Gonads 705 



Guthrie, C. C, & Castle — Guinea-pig Graft Hybrids 705 



Bataillon, E. — Artificial Parthenogenesis of Frog's Eggs 706 



Dehorne, Armand — Number of Chromosomes in Batrachians and in Parthenogenetic 



Embryos 7' 16 



Southwell, T. — 1 iitra-uterine Embryos of Saw-fish 706 



Durken, B. — Influence on Nervous System of Extirpation of Limb-primordia in 



Frog Embryos 706 



M'mner, F. B. — Somatic Modifications in White Mice, and their Reappearanci- in 



the Offspring 7"t; 



&• Histology. 



Pictet, A. — Minute Structure of Food Canal in Cyprinoid Fishes 20 



Reuter, Enzio — Neiv Mode of Nuclear Division .. .. 20 



Dcstin, A. P. — Thymus of Reptiles 20 



Steche, O. — Phosphorescent Organs of Fishes 21 



