. The Dental cosmos. George L. Mason, May 2d, re-turned to Fort Snelling, Minn., from tempo-rary duty at Fort Riley, Kans. First Lieut. Frank P. Stone, May 8th, lefttemporary duty at Fort Moultrie, S. C, enroute to Fort Screven, Ga., for temporaryduty. United States Patents PERTAINING OR APPLICABLE TO DENTISTRY ISSUED DURING APRIL 1912. April 2. No. 1,021,893, to Thomas W. Ross. Dental Nopost extractor. No. 1,022,055, to Marcelline Weiss. Artic-ulator. No. 1,022,070, to Steele F. Gilmore. Dentalbridges and plates. No. 1,022,139, to Joseph Horn. Tooth-brush. No. 1,022,316, to Thomas S. Harlan.
. The Dental cosmos. George L. Mason, May 2d, re-turned to Fort Snelling, Minn., from tempo-rary duty at Fort Riley, Kans. First Lieut. Frank P. Stone, May 8th, lefttemporary duty at Fort Moultrie, S. C, enroute to Fort Screven, Ga., for temporaryduty. United States Patents PERTAINING OR APPLICABLE TO DENTISTRY ISSUED DURING APRIL 1912. April 2. No. 1,021,893, to Thomas W. Ross. Dental Nopost extractor. No. 1,022,055, to Marcelline Weiss. Artic-ulator. No. 1,022,070, to Steele F. Gilmore. Dentalbridges and plates. No. 1,022,139, to Joseph Horn. Tooth-brush. No. 1,022,316, to Thomas S. Harlan. Den-tal waste receptacle. No. 1,022,838,broach. April Levi L. No. No. No. Funk. Dental No. April 16. 1,023,273, to Herbert A. Pullen. Den-tal regulator. 1,023,641, to George T. Greer. Tooth-brush holder. April 23. , to Henry J. Smith. Methodand means for producing dental plates. , to Henry J. Smith. Dentalplate. April 30. 1,024,556, to Graham Clarke. Attach-ment for anesthetizing machines. «. DR. CHAS. H. BARTLETT. THE Dental Cosmos. Vol. L1V. JULY 1912. Xo. 7. Original Communications. STEREOSCOPIC DENTAL SKIAGEAPHS (STEREOGRAPHS). By C, EDMUND KELLS, Jr., , Aev» Orleans, La. [Copyrighted, 1912.] IN 1903 the writer laid before themembers of the National Dental As-sociation the (then) new art in den-tistry—that of stereoscopic skiagraphy;but, greatly to his surprise and disap-pointment, the dental profession hasnever manifested any appreciable interestin this wonderful work, and up to thiswriting he has been unable to find anyoneelse who is doing practical work of thisclass. Not only has stereoscopic work madeno impression upon the dental profession,but even plain skiagraphs are under-valued and misinterpreted by some of ourbest-known authors. The fact should beemphasized that these plain skiagraphsare simple shadow pictures, and are there-fore subject to all physical laws thatgovern ordinary silhouettes. The lower teeth lend themselves mostfavor
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Keywords: ., bookcentury1900, bookdecade1910, booksubjectdentist, bookyear1912
