Roscoe B. Jackson Memorial Laboratory BAR HARBOR, MAINE Dr. Joshua Lederbers Department of Genetics The University of ‘isconsin collece of Agriculture Ladison ©, ‘isconsin Lear Loctor Lederberg: It would be a great pleasure to have you and irs, Lederberg visit the Laboratory in August. Just as soon as you have definite plans as re- gards cates for your visit, please let me know, and I will try to obtain the sort of accomodations which you can indicate that you would like. There are a nunber of comfortable rooming houses, and a sood opportunity to ob tain meals outside of such quarters. i am tending to the matter of reprints, and hope that you will send us yours. Sincerely yours, ae ec wu li fe