FEBRUARY 15, 1940
ANALY'TIC.4L EDITION
gen, nitrogen, and sulfur compounds to concentrate in the residue.
89
G. T., J . Yoc. Chem. I d , 47, 131T (1928); 48, 29T (1929). ( 5 ) Paikhurst. G. L.. U . 9. Patent 1.RRIl.679 - ( 1 ~ 3 4- 1 . ( t i ) Rr~n-r. F.51...I. SOC.C'hem. I M . ,45, 99T (1926'. ( 7 ) Sage. B. H.. Schaafsma, J. G., and Lacey, I!l. i., IND.EXG. CHEM..26, 1218-24 (1931). ('I ' i n r l a t t ~ F.'., 4, 263 (19"). (9) Smith. R.C.. and Howard. H . C., J . Am. Chcm. Soc., 57, 512 (1935). (10) Spilker, A , "Tiokerei und TeerDrodukte der St
