TY  - BOOK
TI  - Scientific American Supplement, No. 497, July 11, 1885
AV  - T 
PY  - 2006///
PB  - Project Gutenberg
KW  - Science -- Periodicals
N1  - Public domain in the USA; Electronic text
UR  - http://www.gutenberg.org/ebooks/9666
ER  -