IV 



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The Enzymes Concerned in the Decomposition of Glucose and Mannitol by 

 Bacillus coli communis. Part III. — Various Phases in the Decomposition of 

 Glucose by an Emulsion of the Organisms. By Egerton Charles Grey (Beit 

 Memorial Research Fellow). Communicated by Dr. A. Harden, F.R.S 92 



The Germicidal Action of Ultra-violet Radiation and its Correlation with Selective 

 Absorption. — Addendum. By C. H. Browning, M.D., and Sidney Russ.,D.Sc. 

 Communicated by W. B. Hardy, Sec. R.S 107 



No. B 626.— April 2, 1918. 



The Germicidal Action of Ultra-violet Radiation and its Correlation with Selective 

 Absorption. — Addendum. By C. H. Browning, M.D., and Sidney Russ, D.Sc. 

 Communicated by W. B. Hardy, Sec. R.S 107 



Croonian Lecture : Evolution and Symmetry in the Order of the Sea-pens. By 



Prof. Sydney J. Hickson, F.R.S 108 



Bactericidal Properties Conferred on the Blood by Intravenous Injections of 

 Diamino-Acridine Sulphate. By C. H. Browning and R. Gulbransen. Com- 

 municated by Prof. R. Muir, F.R.S 136 



The Isolation and Serological Differentiation of Bacillus tetani. By W. J. Tulloch, 

 M.D., Temp. Captain R.A.M.C. (Lecturer on Bacteriology at the University of 

 St. Andrews). Communicated by Sir David Bruce, F.R.S., Chairman of the 

 W.O. Committee for the Study of Tetanus 145 



No. B 627.— June 1, 1918. 

 The Formation of Nitrites from Nitrates in Aqueous Solution by the Action of 

 Sunlight, and the Assimilation of the Nitrites by Green Leaves in Sunlight. 

 By Benjamin Moore, D.Sc, F.R.S 158 



Action of Light Rays on Organic Compounds, and the Photo-synthesis of Organic 

 from Inorganic Compounds in Presence of Inorganic Colloids. By Benjamin 

 Moore, D.Sc, F.R.S., and T. A. Webster 168 



Growth of Trees, with a Note on Interference Bands formed by Rays at Small 



Angles. By A. Mallock, F.R.S 186 



On the Efficiency of Muscular Work. By M. Greenwood, Captain R.A.M.C! (T.F.), 

 Lister Institute of Preventive Medicine. Communicated by Prof. Leonard 

 Hill, F.R.S 199 



The Galvanometric Measurement of " Emotive " Physiological Changes. By A. D. 



Waller, M.D., F.R.S 214 



No. B 628.— July 1, 1918. 



On the Quantitative Differences in the Water-Conductivity of the Wood in Trees 

 and Shrubs. Part I. — The Evergreens. By J. Bretland Farmer, F.R.S., Pro- 

 fessor of Botany in the Imperial College of Science and Technology 218 



On the Quantitative Differences in the Water-Conductivity of the Wood in Trees 

 and Shrubs. Part II.— The Deciduous Plants. By J. Bretland Farmer, 

 F.R.S., Professor of Botany in the Imperial College of Science and Technology 232 



