Dr. ifilliam 13. caetle
Buaton gity Bospital
BQeton
Plassachuaet t s

    1 uow havs a gradusbte etudeat @?Mw?~ Ptano, l4.D.) begix?Aing
woxk on the problem bf the relation between the nataror of the hem-
globin in sicikle as11 aamia end tha phsnommon of eicklknf~.