697 



TABLE 777.— WAVE LENGTHS IN ANGSTROM8 OF K-3ERIES LINES REPRE- 

 SENTING TRANSITIONS IN THE ORDINARY X-RAY ENERGY LEVEL 

 DIAGRAM* ALLOWED BY THE SELECTION PRINCIPLES 2118 



* This criterion cannot be strictly applied to the K a line from 4 Be to 9 F, nor to the K & line from 

 11 Na to 29 Cu as reported in this table. , .»..,«, j ^ t 



288 Compton, A. H., and Allison, S. K., X-rays in theory and experiment, D. Van Nostrand Co., Inc., 

 New York, 1935. Courtesy of the publishers. 



(continued) 



SMITHSONIAN PHYSICAL TABLES 



