bitors The POPEfflPe.C0,,597Wa8hington8t,noBton This Company owns the Letters Patent ever introduced. Made by must make early application to secure proper space and C. A. SCHIEREN &CO. classification. For blanks and information, address nranoh Houses I IS Warreii 8t.» New granted to Alexander… … OP THE Telescopes.—By W. E. Warner. How the first telescopes SCIENTIFIC METHOD IN MECHAN- ^tmtxixt ^mtxkm were constructed. Galilio's telescope. Herschel's modifi- PERFUMES.—A PAPER BY JACOB Ical Engineering.—A. lecture by Prof, rolemao Sellers, cations. The Gassegranian system. M ethods of over…
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