81. T. Kushnick 



82. C. Lin 



(3. J. Littlefield 



84. G. Liu 



85 . J . Lockwood 



86. R. Longhi 



M . M. Macintyre 



88. M. Mahoney 



89. M. Manduka 



90. J. Marks 



91. G. Martin 



92. I. Maumenee 



Dept. of Ped., New Jersey Coll. of Med., 



100 Bergen St., Newark, N.J. 07103 



Div. of Ped. and Med. Biochemistry, 



Faculty of Med., Univ. of Calgary, Calgary 



Alberta T2N 1N4 , Canada 



Dept. of Ped., Johns Hopkins Univ. Sch. 



of Med., Baltimore, Md . 21205 



Rockefeller Univ., Rm. 515, 66th St. and 



York Ave., Manhattan, N.Y. 10021 



P.O. Box 109, Dept. of Ped., Sch. of Med. 



Univ. of Calif, at San Diego, La Jolla, 



Calif. 92037 



Inst, for Basic Res. in Mental Retard., 1050 



Forest Hill Rd . , Staten Island, N.Y. 10314 



Dept. of Anatomy and Ped., Case Western 



Reserve Univ., Cleveland, Ohio 44106 



Dept. of Human Genetics, Yale Univ. Sch. of 



Med., 333 Cedar St., New Haven, Conn. 06510 



Institute for Medical Research, Copewood St., 



Camden, N.J. 08103 



Dept. of Ped., Univ. of Texas Health 



Science Cntr. at Dallas, 5323 Harry Hines 



Blvd., Dallas, Texas 75235 



Dept. of Pathology, Univ. of Washington 



Sch. of Med., Seattle, Wash. 98105 



The Wilmer Opthalmologic Inst., 601 N. 



Broadway, Baltimore, Md . 21205 



141 



