This is built on a series of English lectures, revised, brought up to date, the material presented in narrative exposition, rather than lectures with experiments. In the sixteen years since the lectures were given, the field of chemistry has been revolutionized through the discovery of atomic fission. Further new chapters have been written through the establishment of chemical societies and chemical journals. And throughout the history of chemistry, youth has dominated. In America, to which an additional chapter is devoted, young American chemists have been encouraged and helped, and men like Robert Hare, Charles Martin Hall, and Langmuir have made signal contribution. This is part history of chemical advance, largely biographical studies of men who in their youth contributed greatly to this advance:- Humphry Davy, Michael Faraday, Perkin, Couper, Kekule, Pasteur, Hoff, Arrhenius, Newlands, and others. While there is no particular fire or zest to the telling, this is material hard to come by elsewhere.