JUNIOR GRADE 

 SCIENCE 



AN INTRODUCTORY COURSE OF PHYSICS AND 



CHEMISTRY FOR IRISH INTERMEDIATE 



SCHOOLS 



BY 



GEORGE A. WATSON 



ASSOCIATE OF THE ROYAL COLLEGE OF SCIENCE, IRELAND 

 SENIOR SCIENCE MASTER IN THE HiGH SCHOOL, DUBLIN 



MACMILLAN AND CO., LIMITED 

 ST. MARTIN'S STREET, LONDON f 

 1918 - 



