Xxiv CONTENTS. 



Industrial Processes. 



I'AG F. 



Harrison, W. — Investigations on Textile Fibres 404 



NOTICES OF NEW BOOKS 



Harshberger, John W. — A Text-booh of Mycology and Plant Pathology .. .. 330 



CusHMAN, J. — The Foraminifera of the Atlantic Ocean. Part I. Astrorhizidas .. 405 

 Wood, Casey Albert — The Fundus oculi of Birds, especiatly as viewed by the 



Opthalmoscope : a Study in Comparative Anatomy and Physiology .. .. 407 



MiLNER & Part — Methods in Practical Petrology (I ^g.) 408 



SiLBERSTEiN, LuDWlK — Simplified Method of Tracing Rays through any Optical 



System 409 



jj „ — Elements of the Electro-magnetic Theory of Light .. .. 409 



PROCEEDINGS OF THE SOCIETY. 



Meeting, December 19, 1917 105 



January 16, 1918 108 



„ February 20, „ 113 



March 20, „ 237 



Special General Meeting, April 17, 1918 240 



Meeting, April 17, 1918 241 



May 15, „ 244 



June 19, „ 333 



October 16, „ 410 



November 20, , 420 



General Index to Volume 429 



