TY - JOUR T1 - An Extract of a Letter of Dr. J. Wallis, to M. Hevelius, from Oxford, Decemb. 31. 1673. Gratulatory for His Organographia; And Particularly Concerning Divisions by Diagonals, Lately Inserted in Mr. Hook's Animadversions on the First Part of the Machina Coelestis of the Honourable Joh. Hevelius; But so Faultly Printed, That It Was Thought Fit, at the Author's Desire, in His Letter to the Publisher, of Januar. 4. 1674/5 to be here Done More Correctedly JF - Philosophical Transactions (1665-1678) VL - 9 SP - 243 EP - 246 PY - 1753/01/01/ UR - http://dx.doi.org/10.1098/rstl.1674.0055 M3 - doi:10.1098/rstl.1674.0055 AU - Wallis, J. ER -