£2 Kockland Place New Rochelle, N.Y. 10801 August 7, 1963 Dre Joshua Lederberg Department of Genetics Stanford University School of Medicine Palo Alto, California Dear Dr. Lederberg: I request permission to use the material specified below, in a book I am preparing entitled THE NEW MICROBIOLOGY, and in future editions or revisions thereof, to be published by the McGraw-Hill Book Company, Ince: Gene recombination in the bacterium Escherichia coli, by E.L. Tatum and Joshua Lederberg. Jour. Bact. 53:673-684. 1947. _The publisher of the Journal of Bacteriology hes given permission conditional upon your approval. SOS ete ester Nees sre ms The articles used in the book will ve(abridged considerably. It is planned, for instance, to delete the sumiiaries,-the......-- bibliographies, acknowledgments, and, if present, most or all of the details of methods and sources of materials. Your prompt consideration of this request will be greatly appreciated. A release form is given below for your convenience. The duplicate is for your files. Very truly Fours s ae! , ( f “ re ace mM we Ra JOHN E. Fuyin ; NU ne noe oe weer rece ee secre once ww I(we) herevy grant permission for the use of the material requested” above. a wf (ergneay(d Aw kia (date) | / ZA cc; E.L. Tatum .¢ i Je Lederberg ” Yn l bo Ropes fo “UF . 1 4. if” 4 LZ oO YA eang ae Bark i ue ath tute pe a Cor. hg A Abn } nant verv PRLog, dora \ ; 4 So marolAr pe 0 dentin Meare. Aad i pf . i: A: : Vere ‘ ne Mae “ne ‘ spbe “* ft flee i . . OPA WR PUES rte gy ulin AX ent, Sr gh ov forayer wy @ Ne 4 f