Within the past fifteen years there have appeared numerous papers, especially in foreign journals, dealing with the treatment of certain types of glaucoma with preparations of the suprarenal gland. It was early recognized that the procedure is not unattended by dangerous complications. Although more clinical investigation will be necessary to evaluate and standardize the method, it appears to be the consensus, at least of American ophthalmologists,1that epinephrine should be used only in certain cases as a temporary measure until operation can be safely undertaken and in cases in which operative intervention is contraindicated. Rarely may glaucoma be controlled indefinitely by epinephrine alone. Aside from the therapeutic uses of the preparations of the suprarenal gland, a further value lies in the happy combination of mydriasis with reduction in the intra-ocular tension which is produced by the stronger (2 per cent) solutions on their local instillation into