TY  - BOOK
AU  - Tyndall,John
TI  - Six Lectures on Light: Delivered In The United States In 1872-1873
AV  - QC 
PY  - 2004///
PB  - Project Gutenberg
KW  - Light
N1  - Public domain in the USA; Electronic text
UR  - http://www.gutenberg.org/ebooks/14000
ER  -