V 



PAGE 



No. B 615.— July 1, 1916. 



Preliminary Report on the Purbeck Characece. By Clement Reid, F.R.S., and 



J. Groves. (Plate 8) 252 



The Endemic Flora of Ceylon, with Reference to Geographical Distribution and 

 Evolution in General : A Correction. By J. C. "Willis, M.A., Sc.D., late 

 Director of the Botanic Gardens, Rio de Janeiro. Communicated by D. H. 

 Scott, For. Sec. R.S 257 



The Growth-Rings on Herring Scales. By Geoffrey "W". Paget, B.A., and Robert 



E. Savage, A. R.C.Sc. Communicated by Dr. A. T. Masterman, F.R.S 258 



On the Classification of the Reptilia. By Edwin S. Goodrich, F.R.S., Fellow of 



Merton College, Oxford 261 



The Relation of Excised Muscle to Acids, Salts, and Bases. By Dorothy Jordan 

 Lloyd, B.Sc, "N" Fellow of Newnham College, Cambridge. Communicated 

 by W. B. Hardy, Sec. R.S 277 



No. B 616.— August 1, 1916. 



Notes on the Genus Toxoplasma, with a Description of Three New Species. By 

 H. G. Plimmer, F.R.S., Professor of Comparative Pathology in the Imperial 

 College of Science and Technology, London. (Plates 9 and 10) 291 



Further Observations on Protozoa in Relation to Soil Bacteria. By T. Goodey, 

 D.Sc, Protozoologist, Research Laboratory in Agricultural Zoology, University 

 of Birmingham. Communicated by Prof. F. W. Gamble, F.R.S 297 



On the Occurrence of Gelatinous Spicules, and their Mode of Origin, in a New 

 Genus of Siliceous Sponges. By Arthur Dendy, D.Sc, F.R.S., Professor of 

 Zoology in the University of London (King's College). (Plate 11) 315 



On the Experimental Production of Congenital Goitre. By Robert McCarrison, 

 M.D., D.Sc, F.R.C.P. (late on Special Duty for the Study of Goitre and 

 Cretinism in India). Communicated by Sir Victor Horsley, F.R.S. (Plate 12) 322 



No. B 617.— November 1, 1916. 



The Ultra- Violet Absorption Spectra of Blood Sera. By S. Judd Lewis, D.Sc. 

 (Tiibingen), B.Sc. (London), F.I.C. Communicated by Sir William Ramsay, 

 K.C.B 327 



An Experimental Investigation into the Role of the Blood Fluids in the Intra- 

 cellular Digestion of Certain Bacteria and Red Corpuscles. By S. R. Douglas, 

 M.R.C.S., L.R.C.P. (Lond.), Captain I.M.S. (Retired), 1st Assistant Bacterio- 

 logical Department, Medical Research Committee, National Insurance Act. 

 Communicated by Sir Almroth Wright, F.R.S 335 



Some Photochemical Experiments with Pure Chlorophyll and their Bearing on 

 Theot ies of Carbon Assimilation. By Ingvar Jorgensen and Franklin KLidd. 

 Communicated by V. H. Blackman, F.R.S 342 



Investigations dealing with the Phenomena of " Clot " Formations. Part IV— The 

 Diphasic Erosive Action of Salts on the Cholate Gel. By S. B. Schryver and 

 Mary Hewlett. Communicated by V H. Blackman, F.R.S 361 



