CONTENTS. 



SERIES B. VOL. LXXXIX. 



No. B 609.— July 1, 1915. 



PAGE 



On the Function of Chlorophyll. By Alfred J. Ewart, D.Sc, Ph.D., Professor of 

 Botany and Plant Physiology in the Melbourne University and Government 

 Botanist of Victoria. Communicated by Prof. A. C. Seward, F.R.S 1 



On Forms of Growth Resembling Living Organisms and their Products Slowly 

 Deposited from Metastable Solutions of Inorganic Colloids. By Prof. Benjamin 

 Moore, M.A., D.Sc, F.R.S., and W..G. Evans, B.Sc. (Plate 1) 17 



The Production of Growths or Deposits in Metastable Inorganic Hydrosols. By 



Prof. Benjamin Moore, M.A., D.Sc, F.R.S. (Plates 2 and 3) 27 



A Contribution to our Knowledge of the Chemistry of Coat-Colour in Animals and 

 Dominant and Recessive Whiteness. By H. Onslow. Communicated by Prof. 

 F. G. Hopkins, F.R.S 36 



No. B 610.— August 2, 1915. 



The Transmission of Infra-red Rays by the Media of the Eye and the Transmis- 

 sion of Radiant Energy by Crookes and other Glasses. By H. Hartridge, M. A., 

 M.B., B.C., Fellow of King's College, Cambridge, and A. V. Hill, M.A., Fellow 

 of Trinity College. Communicated by W. B. Hardy, F.R.S 58 



Soil Protozoa and Soil Bacteria. By Edward John Russell (Rothamsted Experi- 

 mental Station). Communicated by Dr. Horace T. Brown, F.R.S 76 



The Chromosome Cycle in Coccidia and Gregarines. By Clifford Dobell and 



A. Pringle Jameson. Communicated by J. Bretland Farmer, F.R.S 83 



Experiments on the Restoration of Paralysed Muscles by Means of Nerve 

 Anastomosis. Part III. — Anastomosis of the Brachial Plexus, with a Con- 

 sideration of the Distribution of its Roots. By Robert Kennedy, M.A., D.Sc, 

 M.D., St. Mungo Professor of Surgery in the University of Glasgow. Com- 

 municated by Prof. J. G. McKendrick, F.R.S. (Abstract.) 94 



The Development of the Thymus, Epithelial Bodies, and Thyroid in the Mar- 

 supialia. Part I. — Trichosurus vulpecula. By Elizabeth A. Fraser, B.Sc. 

 (Lond.), and Prof. J. P. Hill, F.R.S. (Abstract.) '. 97 



