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Carol Litchfield and Elsa Lewkowitsch in London
Table No. 1: Hydrolysis of oils and fats using hydrochloric acid
Possible hemp roller stones
Possible hemp roller stones
Internal arrangement of iron vessel for making boiled linseed oil
Suitcase containing Elsa Lewkowitsch's Planned Seventh Edition
Possible hemp roller stones
Robert Andrews Millikan, Messel Medalist (1928) of the Society of Chemical Industry
Chinese bean mill at Newchwang
Hawksley, Wild & Co. Ltd. Patent Flanged Flued Boiler, Sheffield
Julius Lewkowitsch fraternity picture
Photomicrographs of Fat Crystals
F.A. Cutten
Self-contained Decorticator and Separator for Castor Seed, No. 196
Katherine Lewkowitsch with three companions
Packing Oleomargarine for Market
Hermann Franz Moritz Kopp, German chemist
Ernst Christian Friedrich Schering, German apothecary and industrialist
Charles Morris
Melting beef fat for oleo oil
Self-contained seed screen for linseed and similar seeds
Alfred Russel Wallace, British scientist
McNeil-Lewkowitsch patent
Hemp roller stone
Elsa Lewkowitsch, age 6 months

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