TY  - JOUR
T1  - A Description of Dr. Christopher Wren's Engin, Designed for Grinding Hyperbolical Glasses; As It Was in a Manner Promised Numb. 48. p. 962
JF  - Philosophical Transactions (1665-1678)
VL  - 4
SP  - 1059
EP  - 1060
PY  - 1753/01/01/
UR  - http://dx.doi.org/10.1098/rstl.1669.0046
M3  - doi:10.1098/rstl.1669.0046
AU  - Wren, C.
ER  -