VI 



PMT* 



Chi the Minute Structure of Striped Muscle, with Special Reference 

 to a New Method of Investigation, by means or " Impressions " 

 stamped in Collodion. By John Berry Haycraft, M.D., D.Sc., F.R.S.E. 



(Plate 6) 287 



March 5, 1891. 



List of Candidates .. _ 304 



Some Suggestions regarding Solutions. By William Ramsay, Ph.D., 

 F.RS., Professor of Chemistry in University College, London 305 



Preliminary Notice of a New Form of Excretory Organs in an Oligo- 

 ciuetous Annelid. By Frank E. Beddard, M.A., Prosector of the 

 Zoological Society .". 308 



( 'oiitributions to the Study of the Connexion between Chemical Consti- 

 tution and Physiological Action. Part II. By T. Lander Brunton, 

 M.D., F.R.S., and J. Theodore Cash, M.D., F.RS, 311 



The Physiological Action of the Paraffinic Nitrites considered in con- 

 nexion with their Chemical Constitution. Part I. The Action of 

 the Parattinic Nitrites on Blood Pressure. By J. Theodore Cash, 

 M.D., F.R.S., Professor of Materia Medica in the University of Aber- 

 deen, and Wyndham R. Dunstan, M.A., Professor of Chemistry to the 

 Pharmaceutical Society of Great Britain 314 



Some Points in the Structure and Development of Dentine. By J, 

 Howard Mummery 319 



List of Presents .. 321 



Marc\ 12, .1891. 



On the Plasticity of an Ice Crystal. By the late J. C. McCennel, M.A. 323 



On the Effect of Temperature upon the Refractive Index of certain 

 Liquids. By W. Cassie, M.A _ 343 



On the Bisulphite Compounds of Alizarin-blue and Coanilin as Sen- 

 sitisers for Rays of Low Refrangibility. By George Higgs 345 



On certain Properties of Metals considered in Relation to the Periodic 



Law. By W. C. Roberta-Austen, C.B., F.R.S 347 



List of Presents ,.. 357 



March 19, 1891. 



On the Uterine Villiform Papillse of Pteroplntcea micrura, and their 

 Relation to the Embryo, being Natural History Notes from H.M. 

 Indian Marine Survey Steamer " Investigator," Commander R F. 

 Hoskyn, RN., Commanding. No. 22. By J. Wood-Mason, Superin- 

 tendent of the Indian Museum and Professor of Comparative Anatomy 

 in the Medical College of Bengal, and A. Alcock, M.B., Surgeon I.M.S., 

 Surgeon-Naturalist to the Survey ^. 359 



A New Test for Albumin and other Proteids. By John A. Mac William, 

 M.D., Professor of the Institutes of Medicine in the University of 

 Aberdeen *...... 368 



The Influence of Oxygen on the Formation of Ptomaines. By William 

 Hunter, M.D., F.R.S.E .*.... 376 



