TY  - SER
TI  -  Scientific American, Vol. XXXVII.—No. 2. [New Series.], July 14, 1877 : :  
AV  - T 
PY  - 2012///
PB  -  Project Gutenberg, 
KW  -  Technology -- Periodicals
KW  -  Science -- Periodicals
N1  -  Public domain in the USA;  Text
UR  -  http://www.gutenberg.org/ebooks/38481
ER  -