TY  - JOUR
T1  - A General Investigation of the Nature of the Curve, Formed by the Shadow of a Prolate Spheroid, upon a Plane Standing at Right Angles to the Axis of the Shadow; in a Letter to the Royal Society, by Mr. George Witchell, F. R. S.
JF  - Philosophical Transactions (1683-1775)
VL  - 57
SP  - 28
EP  - 43
PY  - 1767/01/01/
UR  - http://dx.doi.org/10.1098/rstl.1767.0004
M3  - doi:10.1098/rstl.1767.0004
AU  - Witchell, G.
ER  -