CONTEMPORARY ADVANCES IN PHYSICS, XXIX 



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Table of Nuclear Spins 



This tabulation is presented sous toutes reserves. The values are of very different 

 degrees of reliability, but it would be foolhardy for a non-specialist to grade them. 

 They are collected from many sources, including tables by H. E. White (introduciion 

 to Atomic Spectra, McGraw-Hill, 1934), by H. Schiiler (ZS. f. Physik, 88, 323-335, 

 1934), by G. Beck (unpublished) and by R. F. Bacher (unpublished), and a number of 

 papers which have appeared in the last fourteen months in Die Naturwissenschaften, 

 the Physical Review, and other journals. 



Values obtained by magnetic-deflection methods are marked R; those deduced 

 from alternating intensities in band-spectra are labelled B; those marked H or not 

 marked at all are inferred from optical observations on hyperfine-structure. Two 

 values for a single mass-number signify either data compatible with both, or dis- 

 cordance between two authorities. X signifies that hyperfine-structure has been 

 sought but not found, which may mean that the spin is zero, but on the other hand 

 may mean that the magnetic moment is too small to produce an observable spread of 

 the hyperfine pattern. When a value of zero for spin is deduced from band-spectra, 

 it is not subject to that doubt. 



