... Page 3. 1802 TENNEY L.DAVIS ANI> NICHOLAS D. CONSTAN VOl. ... for CloHllOaNl: N, 20.3. Found: N, 20.6. (9) Prepared according to the method of Davis and Blanchard, seventh paper of this series. ... (3) ER Buchman and RR Williams, Paper read before the Organic Division of the American Chemical Society at the New York meeting, April, 1936. Buchman, Tms JOURNAL, 57, 536 (1935). establishment of the presence of the thiazole nu- cleus in the vitamin. ...