a LONDON SCHOOL OF HYGIENE AND TROPICAL MEDICINE, KEPPEL STREET (GOWER STREET), LONDON, W.C.1, Department of Bacteriology, 16th March, 1953, Dr. J. Lederberg, Department of Genetics, University of Wisconsin, Madison 6, WISCONSIN ~~ U.S.A. a: Dear Dr. Lederberg, Dr. A. Bernstein tells me that he is applying for & research assistantship with you at Wisconsin, and has asked me to act as one of his referees, My knowledge of Dr. Bernstein refers to the period of one year (1951-52) during which he worked in this Department as a member of a group of advanced pos tgradua tes studying for the . Academic. Diploma in Bac tériology.. I” forméd an excellent pmpression of him during this time. He was a hard worker of the solid rather she sparkling kind. He has a good general knowledge of funda- Smarts a and medical bacteriology, and I and my colleagues regarded him zag one of the best in his group. see a” : This course of study enables” us only ‘indirectly to eaneas the qualities of a worker with regard to research, My view ~ 18 ‘that Dr. Bernstein would tackle a research task with mothod and: (34 ..purpose. He-ista bidy. worker and, having made his plans, I am sure that he would pur ste the Wbrk with enthusiasm even if notebie resylts were not forthodmitg ss an| carly: 3 tage. vA b 8 We have. ard much about your laboratory from 1? iDr. Stocker ,: = whe has of corse an unusually quick perception of a | . | problem. Dri Bernstein's: ualifies are rather different, in the way ;: I have indicated, “I have fo doubt that his industry and "reliability ‘, , would prove ‘$f ‘first importance 4n research in bacterial genetics. . 4, De. Bernstein is & up leasan man, quiet and liked by his colleagues. a gives me plegsute | to oopmend his application to you. CG R oe Yours sincerely, CBee Professor of Baotertologye EB aoa! ety