Journal of ophthalmology, otology and laryngology . = No. igo6—Geneva Toric Each, $8 oo = IN keeping wirh the great improvement In ^= opthalmic lenses and the increasing = popularity of the roric forms and higher = curves, we are pleased to unnounce a vast = improvement in our Toric Lens Me .sure. == which accurately measures all radius of === curvature in both plus or minus up to and = including diopter. = The Toric Lens Measure insures accuracy and —g saves time in determining curvatures over io. = diopter, as it iliminates the necessity of neu- = truli/.ing the higher curves. No. 1091


Journal of ophthalmology, otology and laryngology . = No. igo6—Geneva Toric Each, $8 oo = IN keeping wirh the great improvement In ^= opthalmic lenses and the increasing = popularity of the roric forms and higher = curves, we are pleased to unnounce a vast = improvement in our Toric Lens Me .sure. == which accurately measures all radius of === curvature in both plus or minus up to and = including diopter. = The Toric Lens Measure insures accuracy and —g saves time in determining curvatures over io. = diopter, as it iliminates the necessity of neu- = truli/.ing the higher curves. No. 1091—Geneva Prism Measure. Each, $ instrument for the correct detectionand measurement of prism power inlenses. The pointer indicates the exactamount of prism power in instrument will give good result withany lenses, including spheres, cylinders,and sphero-cylinders. Many times lenseswill come to you for duplication or recordand the presence of a prism in them willgo unnoticed without this valuable instru-ment. Made of brass, heavily nickel plated. ST. LOUIS Order Today, Prices Subject To Cash Discount GENEVA OPTICAL CO. Main Office and Factory CHICAGO, U. S. A. MINNEAPOLIS DES MOINES CINCINNATI EFFICIENCYACCURACYSPEEDQUALITY These are the outstanding features of the SWIGART OPTICALCOMPANY Any one of these three features constitutes a valid claimto leadership. Very few Optical houses combine themall. The character of the Swigart Optical Service has beenpermanently established since 1886—and that is—abso-lutely—the best. The Swigart Optical Company


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Keywords: ., bookcentury1900, bookdecade1910, booksubjectophthalmology, bookye