Joannis Keill M.D. & R.S.S. in Academia Oxoniensi Astronomiæ Professoris. Epistola ad virum clarissimum Joannem Bernoulli in Academia Basiliensi Mathematum Professorem.
Keill, John,1671-1721.
Londini : typis Pearsonianis. Anno,
1720.
The second part, pp.[21]-28, is 'Additamentum'.
ESTC