Vlll CONTENTS. 



NOTES. 



PAGE 



On the Influence on Images of Gratings of Phase Difference amongst their Spectra. 



By Julius Rheinberg 088 



An Attachment for Reading the Lines in a Direct-vision Spectroscope. By 



E. B. Stringer, B.A, F.R.M.S. (Fig. G3.) 390 



On a Method of Obtaining Monochromatic Ultra-violet Light. By E. B. 



Stringer, B.A., F.R.M.S 392 



On Grayson's 120,000 Band-Plate. By Edward M. Nelson 393 



On Nelson's New Formula Amplifier. By A. A. C. Eliot Merlin 396 



On the Use of the Esculin Screen in Photomicrography. By Frederic E. Ives 631 



OBITUARY. 



Charles Thomas Hudson, MA. LL.D. F.B.S., Hon. F.R.M.S. 1828-1903. ■ .. 48 



SUMMARY OF CURRENT RESEARCHES 



Relating to Zoology and Botany (principally Invertebrata and 

 Cryptogamia), Microscopy, &c, including Original Communications 

 from Fellows and Others.* 50, 167, 289 398, 507, 635 



ZOOLOGY. 



VERTEBRATA. 



a. Embryology. 



Castlf, W. E. — MendeV s Law of Heredity 50 



Wintrebkkt, P. — Regeneration of Hind Limbs and Tail in Amphibia 53 



Bouin, P., & P. Ancel — Interstitial Cells of the Mammalian Testicle 53 



Browne, F. B. — Ova and Larvse of Fishes 54 



Schultze, Oskar — Determination of Sex 167 



Kouschelt, E., & K. Heideb — General Embryology 167 



Hickson, S. J. — Mechanics of Development 167 



Kkasan, Franz — Conversational JEtiology 168 



Rejsek. J. — Uterine Implantation of the Ovum of Spermophilus citillus 168 



Dubuisson, M. — Normal Degeneration of Egg* not Liberated 168 



Ballowitz, E. — Spermatozoa of DUcoglossus pictus 168 



Phisalix, C. — Correlation between Poison-Gland and Ovary in Toad 168 



Hubrecht, A. A. W. — Development of Tarsius Spectrum 169 



Mencl, M. — Development of Lens 169 



Peter, Karl — Notes on Development of Lizard 169 



Punnett, R. C. — Nutrition and Sex Determination in Man 289 



Copeman, S. M., & F. G. Parsons — Sex of Mice 290 



Cuenot, L. — Heredity of Pigmentation in Mice 290 



Vries, Hugo De — Fertilisation and Hybridisation 290 



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

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



