PROCEEDINGS 



OF 



THE ROYAL SOCIETY. 



Series B. Vol. 77. No. B 520. 



BIOLOGICAL SCIENCES. 



CONTENTS. 



Page 



On the Function of Silica in the Nutrition of Cereals. — Part I, By 



A. D. HALL and C. G. T. MORISON 455 



On Innervation of Antagonistic Muscles. Ninth Note. — Successive Spinal 



Induction. By C. S. SHERRINGTON, F.R.S 47» 



On the Existence of Cell Communications between Blastomeres. By 



CRESSWELL SHEARER, Trinity College, Cambridge. (Plate 18) . 49& 



An Experimental Enquiry into the Factors which Determine the Growth and 

 Activity of the Mammary Glands. By Miss J. E. LANE-CLAYPON. 

 D.Sc. (Lond.), and Prof. E. H. STARLING, F.R.S. (Plate 19) . . 5»5 



printed FOR THE ROYAL SOCIETY/ 

 HARRISON & SONS, 45, ST. MARTIN'S LA 



No. B 530. 



Price Two Shillings and Six^ 



May 18, 1906. 



