Group of 4 offprints. Includes: ZECHMEISTER. "Stereochemistry and Chromatography." Offprint from: Annals of the New York Academy of Sciences, vol. XLIX, Art. 2, 1948.

New York:: New York Academy of Sciences, 1948., 1948. 8vo. 220-234 pp. Figs. Self wraps. Ownership rubber stamp of Norman Horowitz, California Institute of Technology. Fine. Zechmeister was associated with Caltech. All of the papers bear the signature or rubber stamp of early geneticist and Caltech professor Norman Horowitz. WITH: ZECHMEISTER. "History, Scope, and Methods of Chromatography." Offprint from: Annals of the New York Academy of Sciences, vol. XLIX, Art. 2, 1948. 8vo. 145-160 pp. Self wraps. Fine. WITH: ZECHMEISTER. "Some Stereochemical Aspects of Polyenes." Offprint from: Experientia, vol. X/1, 1954. 4to. 1-11 pp. Figs. Self wraps. Fine. WITH: ZECHMEISTER. "Some Biochemical Studies Based on Chromatographic Methods." Offprint from: The Harvey Lectures, Series XLVII, 1951-52. 8vo. 221-241 pp. Printed wrappers. Fine.