00940cam a22002411  4500001001300000003000400013005001700017008004100034010002300075040002200098050002200120100003100142245015400173260005000327300004300377490006400420500004500484650001500529650002700544650003000571830006100601830003600662s  13000064 DLC20260227111910.0850226s1864    dcua          00010 eng    as  13000064 //r912  aDLC/ICUcICUdDLC00aQ11b.S68 vol. 1410aDraper, Henry,d1837-1882.10aOn the construction of a silvered glass telescope,bfifteen and a half inches in aperture, and its use in celestial photography.cBy Henry Draper ...0 a[Washington,bSmithsonian institution,c1864]  a2 p.l., 55 p.billus., diagrs.c33 cm.1 aSmithsonian contributions to knowledge.v[vol. XIV, art. 4]  aSmithsonian institution publication 180. 0aAstronomy. 0aReflecting telescopes. 0aAstronomical photography. 0aSmithsonian contributions to knowledge ;vv. 14, art. 4. 0aSmithsonian publication ;v180.