January 2, 1952 Verlag Barkhauser Basel, Switzerland Gentlemen: I understand that Professor Paul Buchner has written a new beel: on symbiosis to be published shortly by your firm. I would appreciate it if you could send me details on this book so that I can arrange te have aun order placed, and the book received, at “stn **8TM “9 UOSTPER the ecrliest possible date. UpSsucosTM Jo Ay¥RTeaTUy sotqeuen “4deq FAP REexely, Joshusz Lederberg Asscciate Professor cf Genetics 4