. The American journal of roentgenology, radium therapy and nuclear medicine . Fig. 2. Retinometer Open. exposed to bright light and for this reasonthey are always kept in the dark and onlyexposed to view by the action of pulling thestring. They remain of constant luminouspower if they are not exposed to the three discs chosen for this instrument. Fig. 3. Retinometer in are the standard discs of a company manu-facturing them. I |)icked them out of a largeselection of standard luminous discs, andhave been using them for more than sixmonths during which I have noticed nocha
. The American journal of roentgenology, radium therapy and nuclear medicine . Fig. 2. Retinometer Open. exposed to bright light and for this reasonthey are always kept in the dark and onlyexposed to view by the action of pulling thestring. They remain of constant luminouspower if they are not exposed to the three discs chosen for this instrument. Fig. 3. Retinometer in are the standard discs of a company manu-facturing them. I |)icked them out of a largeselection of standard luminous discs, andhave been using them for more than sixmonths during which I have noticed nochange in the power of their luminosity. I have to acknowledge the help of the^ictor Electric Corporation in getting theinstrument up in its present shape, whichdifl^ers considerablv from mv first model. INTRACRANIAL CALCIFICATION* By JOHN T. MURPHY, TOLEDO, OHIO I HIS paper is the result of an interest-■• in the subject aroused by the follow-ing case: CASE REPORT Mrs. M. J. L. Referred by Dr. Pamment. Occupation: Bookkeeper. Age forty-seven. Married. Previous History.—Negative except fordiphtheria in childhood. Perineal repair in1912. Menstruation began at eighteen at the age of forty-two. Alwaysregular and no pain. Patient married attwenty-four years and had her first child attwenty-seven years, which died fourteenmonths late
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Keywords: ., bookauthoramerican, bookcentury1900, bookdecade1900, bookyear1906
