TY  - BOOK
TI  - Scientific American Supplement, No. 803, May 23, 1891
AV  - T 
PY  - 2004///
PB  - Project Gutenberg
KW  - Science -- Periodicals
N1  - Project Gutenberg; Freely available; Electronic text
UR  - http://www.gutenberg.org/etext/13358
UR  - http://www.gutenberg.org/license
ER  -