TY  - JOUR
T1  - Investigation of the Cause of That Indistinctness of Vision Which Has Been Ascribed to the Smallness of the Optic Pencil. By William Herschel, LL.D. F.R.S.
JF  - Philosophical Transactions of the Royal Society of London (1776-1886)
VL  - 76
SP  - 500
EP  - 507
PY  - 1786/01/01/
UR  - http://dx.doi.org/10.1098/rstl.1786.0028
M3  - doi:10.1098/rstl.1786.0028
AU  - Herschel, W.
ER  -