Vlll CONTEXTS. 



NOTES. 



PAGE 



Convenient Form of Stand for Use as a Micro-Coloriineter and with the Micro- 

 Spectroscope. By Marshall D. Ewell, F.R.M.S. (Figs. 2-4) 14 



Note on the Use of tlie Mercury Vapour Lamp in Observing the Rings and Brushes 



in Crystals. By E. B. Stringer 440 



Grayson's Photomicrographs of his Rulings. By Edward M. Nelson. (Plate XIV.) 701 



SUMMARY OF CURRENT RESEARCHES 



Relating to Zoology and Botany (principally Invertebrata and 

 Cbyptogamia), Microscopy, &c, including Original Communications 

 from Fellows and Others.* 17, 149, 293, 441. 555, 704 



ZOOLOGY. 



VERTEBRATA. 



a. Embryology- 



Winiwarter, H. v., & G. Sainmont — Structure of Mammalian Ovary 17 



Bouin, P., & P. Ancel— Ottarura Glands 17 



Brohmer, Paul — Head of Embryo Chlamydoselachue 18 



Borcea, I. — Development of Heart in Teleogts 18 



„ Intermediary Mesodermic Mass in Teleost Embryos 18 



Broom, R. — Development of Marsupial Skull 18 



Mollier, S. — Blood-formation in Embryonic Mammalian Liver 18 



Marcus, Harry — Development of Head of Gymnophiona 19 



Youngman. AV. — Abnormal Unproductive Organs in Frog 19 



Guyer, M. F. — Spermatogenesis of Fowl 19 



Fleig, C. — Vitality of Spermatozoa 20 



Barfurth, D. — 11 yperdactylism in Fowls .. 20 



Agar, W. E. — Embryonic Appendage of Claics of Amniota 149 



Thomson, J'. Arthur — Study of Darwinism .. . . 149 



Kwietniewski, Casimir — Development of Wolffian and Mullerian Ducts in Rodents 150 



Disse, J. — Development of Bone and Dentine 150 



Soderlcnd, G., & A. Backmann — hivolution of Thymus in Babbit 150 



Jolly, J., & A. Carran — Development of Lymphatic Ganglia in Mammals .. .. 150 



Coyle, Ray F. — Development of Auditory Ossicles in Horse 150 



Price- Jones, ('. — Development of Bed Blood Cells in Cliick 151 



Poole, Margaret — Development of Subdivisions of Pleuroperitoneal Cavity in 



Birds 151 



Brunauer. Erna — Development of Vertebral Column in Grass Snake 151 



Hirzel, H. — Abortive Embryo of Salamandra atra . . .. 152 



Tarapani, Helena — Development of Hyobranchial Skeleton in Salamandra atra 



and Triton alpedris 152 



Janssens, F. A., & J. Willems — Spermatogenesis in Alytes obstelricans 152 



Gibson, W. T. — Hypochord in Skate Embryos 152 



Hatschek, B. — Metameres of Petromyzon 152 



Lane, H. H. — Placentation in Tatu 153 



Gates, R. R. — Litter of Hybrid Dogs 153 



Delage, Yves — Alleged Influence of Electric Discharges in Inducing Parthenogenesis 293 



Lecaillon, A. — Vitelline Membrane in Egg of Birds 293 



Guieysse-Pelissier, A. — Polynuclear Ovum in Bat 294 



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

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



