Vlll CONTENTS. 



SUMMARY OF CURRENT RESEARCHES 



Relating to Zoology and Botany (principally Invertebrata and 

 Cryptogamia), Microscopy, &c, including Original Communications 

 from Fellows and Others.* 12,133,250,401,500,630 



ZOOLOGY. 



VERTEBRATA. 



a. Embryology. pagh 



Barthelet — Experiments on Telegony 12 



Cuenot, L. — Sex in Pigeons 12 



Bouin — Histogenesis of Ovary in Rana temporaria 12 



Loisel, G. — Defences of the O cum 13 



Giardina, A. — Alleged Amoeboid Movements of Germinal Vesicle 13 



Wetzel, G. — Abnormal Eggs of Tropidonotus natrix 13 



Loisel, Gustave — Periodicity in Spermatogenesis 14 



Meves, Friedr.— " Nebenkern " of Sperm-cells 14 



Herfort, Karl — Fertilisation in Petromyzon fluviatilis 15 



Hill, J. P. — Foetal Membranes of Dasyurus 15 



Tonkoff, W. — Chondrocranium of Chick 16 



Bertelli, D.— Air-sacs of the Chick 16 



Gregory, Emily Ray — Development of Excretory Organs in Turtles 16 



Wilson, H. V. — Blastopore of Frog 17 



Beard, J. — Thymus-Element in Spiracle of Baia 17 



Fischel, A. — Regeneration of Lens 17 



Winkler, Hans — Can Extract of Sperm act as a Fertilising Agent? 133 



Gemmill, J. F. — Does Nutrition influence the Determination of Sex? 133 



Vernon, H. M. — Reaction of Developing Sea-Urchins to Environment 133 



Galloway, T. W. — Accelerating Effect of Heat upon Growth 134 



Tonkoff, W. — Production of Double Embryos from Neict's Eggs 134 



Cutore, G. — Experimental Embryology 134 



Poljakoff, P. — Maturation and Fertilisation 135 



Carnoy, J. B., & H. Lebrun — Germinal Vesicle of Amphibian Eggs 135 



Honors, Oh. — Pluriovular Follicles in the Rabbit 135 



Harrison, R. G. — Peripheral Nervous System of Salmo salar 136 



Raffaele, F. — Development of Peripheral Nerves 136 



Hoffmann, C K. — Development of Sympathetic System 136 



Moore, J. Percy — Post-Larval Changes in Vertebral Articulations in Salamanders 137 



Ussow, S. — Development of Teleostean Vertebral Column 137 



Weil, R. — Ear-Bones of Opossum 138 



Constantinescu, C. I. — Two Hearts in a Pigeon 138 



Nusbaum, J., & Th. Prymak — Origin of Lymphoid Elements of the Thymus in 



Teleosts 138 



Allis, E. P. — Pseudobranch of Amia calva 138 



Cunningham, J. T. — Sexual Dimorphism among Animals 250 



Heape, Walter — Sexual Season in Mammals 252 



Jenson, A. S. — Eggs of Myxine 254 



Loisel, G. — Blastoderms without Embryos 255 



Boveri, Th. — Merogony and Ephebogenesis 255 



Rondeau-Luzeau — Influence of Saline and Saccharine Solutions on Frogs 7 Eggs . . 255 



Reese, A. M. — Artificial Incubation of Alligator Eggs 255 



* In order to make the Contents complete, the papers printed in the ' Transactions ' 

 and the Notes printed in the 'Proceedings' are included here. 



