Used with permission of Maiken Naylor, University at Buffalo, Buffalo, NY, USA, http://ublib.buffalo.edu/libraries/units/sel/exhibits/stamps

Victor Grignard (1871-1935) was a French mathematician turned organic chemist. His investigation of organomagnesium compounds led to his discovery of the so-called Grignard reagents, compounds useful in the synthesis of hydrocarbons, alcohols, ketones, aldehydes, ethers, and more. For this achievement he shared the 1912 Nobel prize in chemistry with Paul Sabatier.
Paul Sabatier (1854-1941) discovered the catalytic effect of finely ground metals on organic reactions, leading to the hydrogenation of organic compounds (for example, margarine). This work was important for many industrial processes, and resulted in the award of the shared 1912 Nobel prize in chemistry for Sabatier.