TY  - JOUR
T1  - A Proposition of General Use in the Art of Gunnery, Shewing the Rule of Laying a Mortar to Pass, in Order to Strike any Object above or below the Horizon. By E. Halley
JF  - Philosophical Transactions (1683-1775)
VL  - 19
SP  - 68
EP  - 72
PY  - 1753/01/01/
UR  - http://dx.doi.org/10.1098/rstl.1695.0013
M3  - doi:10.1098/rstl.1695.0013
AU  - Halley, E.
ER  -