T HE surgeon orders radium for carwall thickness of 0.5 mm., the loss by cinema of the cervix through the absorption amounts to about ?Jo of the hospital offrce, simply designating dose which the capsule contains; when the “ Standard Combination.” This includes : capsule wall is I mm. thick, the loss is (a) Two, I mm. wall thickness, platinum +fo and when it is 2 mm. thick, the loss capsules each 25 m.c. W.D. (Working Dose, or actually emitted dose) for intrauterine use. These are supplied, placed in tandem in a thin rubber sac with cord attached. An introducing forceps accompanies this. (b) Two, 2 mm. wall thickness, platinum capsules each 25 m.c. W.D. (Working Dose, or actually emitted dose) for vaginal use. A piece of ametallic rubber tubing, 3 mm. wal1 thickness and 8 inches long, together with a dumb-bell joint for fashioning amounts to about 46.