TY  - JOUR
T1  - Astronomical Observations. In Two Letters from M. Francis de Zach, Professor of Mathematics, and Member of the Royal Academies of Sciences at Marseilles, Dijon, and Lyons, to Mr. Tiberius Cavallo, F. R. S.
JF  - Philosophical Transactions of the Royal Society of London (1776-1886)
VL  - 75
SP  - 137
EP  - 152
PY  - 1785/01/01/
UR  - http://dx.doi.org/10.1098/rstl.1785.0008
M3  - doi:10.1098/rstl.1785.0008
AU  - de Zach, M.
ER  -