51. A. Greene 



52 . N . Hahnemann 



53. J. Hamerton 



54. D. Harnden 



55. R. Hay 



56. F. Hecht 



57. J. Herd 



58. K. Hirschhorn 



59. M. Hodes 



60. D. Holsclaw 



Institute for Medical Research, Copewood St., 



Camden, N.J. 08103 



Univ. Institute of Med. Genetics, 14, 



Tagensivej-Copenhagen N. , Denmark 



Dept. of Genetics, Children's Cntr., 685 



Bannatyne Ave., Winnipeg, Manitoba R3E 0W1 



Canada 



Dept. of Cancer Studies, Med. Sch., Univ. 



of Birmingham, Birmingham B15 2TJ , Great 



Britain 



American Type Culture Collection, Cell 



Culture Dept., 12301 Parklawn Dr., 



Rockville, Md . 20852 



Child Develop, and Rehabilitation Cntr., 



Univ. of Oregon Health Sciences Cntr., 



P.O. Box 574, Portland, Ore. 97207 



Dept. of Ped., Creighton Univ. Sch. of 



Med., 10th and Castelar Sts., Omaha, Neb. 



68108 



Dept. of Ped., Annenberg Bldg., Mt . Sinai 



Sch. of Med., 5th Ave. and 100th St., 



New York, N.Y. 10029 



Dept. of Med. Genetics, Indiana Univ. Sch. of 



Med., 1100 w. Michigan St., Indianapolis, 



Ind. 46202 



Dept. of Ped., Hahnemann Med. Coll., 230 N. 



Broad St., Philadelphia, Pa. 19102 



138 



