THE UNIVERSITY OF WISCONSIN COLLEGE OF AGRICULTURE hH SY C3 Madison 6 DEPARTMENT OF GENETICS lownber 30, 1956 lkw Dr. Heidelbergert !fhards you for your ORnnr of the 28th to my wiry about the pneumo- ewcal polpsuccharider. Ln the ht.ria, I have gottea to rree the Haey Founda- tion Sylpporritlar, and hnve Isarrud mld8 of details from the discwrrion there, I u .Im loow ftarumi to awing thr arkielea you eited in ytm lettar.