TY  - BOOK
AU  - Helmholtz, Hermann Ludwig Ferdinand von,
AU  - Atkinson, Edmund,
TI  - Popular lectures on scientific subjects
U1  - 504 HEL 
PY  - 1893///
CY  - London
PB  - Longmans, Green, and co.
KW  - Science
N1  - First published in 1873; Cover title: Popular scientific lectures ... vol. 1
ER  -