TY  - SER
AU  -  Chipman, Robert A.
TI  -  The Earliest Electromagnetic Instruments 
AV  - T 
PY  - 2010///
PB  -  Project Gutenberg, 
KW  -  Electric apparatus and appliances
N1  -  Public domain in the USA;  Text
UR  -  http://www.gutenberg.org/ebooks/34061
ER  -