FROM THE
Latin Translation of COMMANDINE,
To which is added,
ATREATISE of the Nature and Arithmetic of
LOGARITHMS; Likewise
Another of the ELEMENTS of Plane and Spherical
TRIGONOMETRY; With
A PREFACE, shewing the Usefulness and Excel-
loncy of this WORK.
By Doctor JOHN KEILL, F.R.S. and late
Professor of ASTRONOMY in Oxford.
The Whole Revised; where deficient, Supplied; where
loft, or corrupted, Restored. Also,
Many Faults committed by Dr.HARRIS, Mr.Caswell,
Mr.HEYNE S, and otherTRIGONOMETRICAL
WRITERS, are shewn, and in those Cases where
They are mistaken, here are given Solutions Geome-
trically True.
Anample Account of which may be seen in the PREFACE
By S A MUEL CUNN.
The 'TWELFTH
EDITION,
Carefully Revised and Corrected.
To which is subjoined an APPENDIX, containing the
Investigation of those Series omitted by the AUTHOR;
and the Difference between Dr. Keill and Mr. Cunn
impartially examined and adjusted.
LONDON:
Printed for W. STRAHAN, JA.F. and a RIVINGTON,
T. LONGMAN, B. Law, T. CADELL, E. JOHNSTON,
G. ROBINSON, and R. BALDWIN.
MDCC LXXXII.