or at SSP iat fe ree, ee res / Jule ANNUAL REVIEW OF BIOCHEMISTRY ge Ce Annual Reviews, Inc. 231 Grant Avenue Palo Alto, Calif., U.S.A. AIR MAIL Dr. Joshua Lederberg Professor of Medical conet ie’ Bacteriology Department + a Melbourne University Mite & Carlton N3, Vic. : a ‘ Australia Dear Dr. Lederberg: We wish to acknowledge rece nt We sincerely regret that yea "are unable ‘to accept our invitation to prepare the review on Biochemistry of Genetic Factors for Volume 28 (1959) of the Annual Review of Biochemistry. _We fully appreciate, however, the circumstances Which prevent your undertaking this task at this time, Perhaps in the future you will feel free to write a chapter for the Review. - “MS SIO WANT We are grateful. ‘for the su estion: in your letter. The names will be added to our file for fe consideration by the Editorial Committee, ekg azsn JML:af