TY  - BOOK
AU  - BUCKINGHAM, JOHN 
TI  - Matter And Radiation : WITH PARTICULAR REFERENCE TO THE DETECTION AND USES OF THE INFRA RED RAYS 
U1  - pg83 
CY  - 1930
N1  - Pg mean Physics General & Mechanics Page 457-464 in A to Z Accession Register (Acc. No. Pg1-Pg228) & Page 640 (Acc. No. 224-231)
ER  -