Robert Rattray Tatlock, Scottish chemist, late 19th century/early 20th century.
© Science Museum / Science & Society Picture Library
Robert Rattray Tatlock (1836-1934) worked as a chemist in a gunpowder factory from 1867. In 1888 he became a 'gas examiner' and created Tatlock and Thomson with his nephew, Robert T Thomson. From 1902-1903 Tatlock served as the first President of the Asociation of Public Analysts.