1. For instance, the Photon machine (Photon Inc., Cambridge, Mass.) and
2. The “Linofilm” (Mergenthaler Linotype Co., Brooklyn, N. Y.).
3. Anon. 1958. Editors Aim at Composition Costs. Chem. and Eng. News (Sept. 22): 102.
4. Anon 1961. Short Cut in Printing Organic Structures. Chem. and Eng. News (Mar. 27): 60.