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Show OQB INVENTOR IS FAMOUS IN SCHOOLS Leishman's Arcascope and Percentograph Popular With Mathematicians. ArtifioH of incorporation have been riled in Ogden by tho Leishmnn Area Hcopo & Supply eomjiany, to manufac ture and sell the ' ' Areaseope' ' and f ' Percentograph, " both the inventions of Le Roy .1, Lelshman of that city. Tho articles call for a capitalization of $.r0,000, divided into 5000 Hharcs of a par valno of $10. Tho office of the company aro Albert Bcowcroft, president presi-dent ; ,T, H. Leiubman, vice president ; David JenHpn, m.'eretary and treaHurer. Thete. with Jbaepfa K. Jeppson and Joseph Thomas will conHtituto the board of directors. The arcascope is a transparent triangle, trian-gle, rulo and protractor which will solvf. automatically problems in trigonometry, geometry, plotting and mechanical drawing. It will multiply and divide, work examples in rutio and proportion and chauee fractions to decimals. By means of linos and scales printed on the i nst i n men t a grammar-parade, student can reach results dosired in tho difficult HubiecU mentioned. Tho percentograph is a circular instrument instru-ment composed or two diwkB on which are printed two sets of numbers. By simply turning the upper or top disk until two numbers in mind are opposite one another, their relative percentage is determined. BaBeball averages, for in stance, can bo readily calculated by this simple littlo novelty. Eastern schools have already adopted the arcascope and have written enthusiastic enthu-siastic letters to its inventors. The high schools and public schools of this city and Ogdon are also using it. With the organization now being effected the Leishman company plans an energetic sales campaign throughout the "United States and is now laying extensive plans toward inaugurating this. Mr. Leishman, Leish-man, the inventor, is a native of Utah and was educated in the schools of Og-den. |