CONTENTS 



Original Papers 



Page 

 Mathematics. — A simple device for the graphical solution of the equation 



A^B-C. F. E. Wright 1 



Geology. — A geological protractor. F. E. Wriciht 5 



Chemistry. — The reaction of soil and measurements of hydrogen-ion con- 

 centration . L. J. Gillespie 7 



Abstracts 



Geodesy 17 



Geology 18 



Proceedings 



Geological Society 21 



Biological Society 24 



