Sold by Harrison and Sons, St. Martin's Lane. 

 Now Ready. 



PHILOSOPHICAL TRANSACTIONS. 



Price £1 3*., with 26 Plates. 

 Series A. Containing Papers of a Mathematical or Physical Character. 

 Vol. CLXXVIII (1887). 



Price £1 165., with 33 Plates. 

 Series B. Containing Papers of a Biological Character. 

 Vol. CLXXVIII (1887). 



The Papers in each Series can also be purchased separately and are published by 

 Triibner & Co., 57, Ludgate Hill. Price 1*. to 3s. 



Cloth cases for binding the above volumes can be obtained of Harrison and Sons, 

 St. Martin's Lane. Price Is. 6d. 



1888. 



The following separate Papers are now ready : — 

 Series A. 



(Containing Papers of a Mathematical or Physical Character.) 



18. The Influence of Stress and Strain on the Physical Properties of Matter 

 Part I. — Elasticity {continued) . The Effect of Magnetisation on the Elasti- 

 city and the Internal Friction of Metals. By Herbert Tomlinson, B.A 

 Price 1*. 



Series B. 



(Containing Papers of a Biological Character.) 



20. A Record of Experiments upon the Functions of the Cerebral Cortex. By 



Victor Horsley, M.B., F.R.C.S., F.R.S., Professor Superintendent of the 

 Brown Institution, and Edward Albert Schafer,F.R.S., Jodrell Professor 

 of Physiology in University College, London. (From the Physiological 

 Laboratory, University College.) Price 4>s. 



21. On the Organisation of the Fossil Plants of the Coal-Measures. Part XIV. — 



The True Fructification of Calamites. By William Crawford William- 

 son, LL.D., F.R.S., Professor of Botany in the Owens College and the 

 Victoria University. Price 2*. 



