Julius Isidor Lewkowitsch (1857–1913) was a German chemical engineer, specialising in vegetable and animal oils and fats, who settled in Victorian England.
He was the author of The Chemical Technology and Analysis of Oils, Fats, and Waxes, a standard text that went through five editions in the years 1895–1921.
[1] Julius Lewkowitsch was born in Ostrowo (then in the Kingdom of Prussia) on 4 September 1857, into a Jewish family.
[1] In 1879 he obtained a doctorate from Breslau University, where he studied under Victor von Richter.
In 1895 he set up in business as a consulting chemist in Manchester, moving to London in 1898.