TY  - BOOK
AU  - Draper,Henry
TI  - On the construction of a silvered glass telescope,: fifteen and a half inches in aperture, and its use in celestial photography
T2  - Smithsonian contributions to knowledge
AV  - Q11 .S68 vol. 14
PY  - 1864///]
CY  - [Washington
PB  - Smithsonian institution
KW  - Astronomy
KW  - Reflecting telescopes
KW  - Astronomical photography
N1  - Smithsonian institution publication 180
ER  -