TY  - BOOK
AU  - Henry Draper
TI  - On the Construction of a Silvered Glass Telescope
KW  - Astronomy
UR  - https://new.zodml.org/sites/default/files/2023-07/on_the_construction_of_a_silvered_glass_telescope_by_henry_draper_tag_astronomy_astronomical_photography_reflecting_telescopes.epub
ER  -