TY  - BOOK
AU  - Olmsted,Denison
TI  - Letters on Astronomy: in which the Elements of the Science are Familiarly Explained in Connection with Biographical Sketches of the Most Eminent Astronomers
PY  - 2012///
PB  - Project Gutenberg
N1  - Public domain in the USA; Electronic text
UR  - http://www.gutenberg.org/ebooks/40240
ER  -