by Olaf (Ole) Roemer
Philosophical Transactions of the Royal Society
No. 136; June 25, 1677
The diagram referred to in the translation appears on p. 234 of the French original, just below.
December 7, 1676
The Greatest Speed (1986). S.R. Filonovich. Mir Publishers: Moscow (Imported Publications, Inc., 320 W. Ohio Street, Chicage, Ill. 60610)
van Helden, Albert. "Roemer's Speed of Light." Journal for the History of Astronomy. vol 14, p. 137-141 (1983).
Olaf (Ole) Roemer (1644-1710)