TY  - JOUR
T1  - A Letter from Benjamin Franklin, LL. D. and F. R. S. to the Reverend Thomas Birch, D. D. and Secretary to the Royal Society
JF  - Philosophical Transactions (1683-1775)
VL  - 52
SP  - 456
EP  - 456
PY  - 1761/01/01/
UR  - http://dx.doi.org/10.1098/rstl.1761.0072
M3  - doi:10.1098/rstl.1761.0072
AU  - Franklin, B.
ER  -