punicin letierin. (pu'nic-in)

A synonym of pelpup'il. The circular aperture in the iris for the transmi ion of light, situated a little to the nasal side of the center. Argyll Robertson p. See Robertson p. Robertson p. A condition which is miotic and when the p. will not retract to light, but contracts promptly under efforts of accommodation. [Lat., pupilla, dim. of pupa, a girl.] Purdy's centrifugal method to determine amount of albumin present in urine, see in appendix, page 894. P's test for glycosuria. A solution is made of 4.15 grams of copper sulphate, 10 grams of pure mannite, and 50 c.c. of glycerin in 250 c.c. of distilled water, and added to 250 c.c. of distilled water, containing 20.4 grams of caustic potash; when the mixture is cold 300 c.c. of strong ammonia are added, together with enough water to make a liter, and the solution is carefully filtered; 25 c.c. of this solution is heated with 50 c.c. of distilled water, and the urine is added drop by drop until the solution is colorle . The number of minims of urine nece ary to decolorize the solution contain just a quarter of a grain of sugar.