TY  - SER
TI  -  Scientific American Supplement No. 819, September 12, 1891 
AV  - T 
PY  - 2005///
PB  -  Project Gutenberg, 
KW  -  Science -- Periodicals
N1  -  Public domain in the USA;  Text
UR  -  http://www.gutenberg.org/ebooks/14990
ER  -