Determinations of atomic weights ...
Richards, Theodore W.(Theodore William),1868-1928.
Washington, D.C., Carnegie institution of Washington,
1910.
Further investigation concerning the atomic weights of silver, lithium and chlorine. By J.W. Richards and H.H. Willard.--The Harvard determinations of atomic weights, between 1870 and 1910.--Methods used in precise chemical investigation.
"List of Harvard papers on determination of atomic weights": p. 91-94.
Atomic weights.