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in English
Sr
Writing to you last Weeke I accquainted you that I had d
somewhat more from Mr Baker in two Letters in the former
he accquaints me with the Paines he hath been taking viz, what he
hath written viz namely
A Treatise of Trigonometry done 26 yeares since, not only simple
and vulgar, but such as Bartholinus pretends
new way of resolving two things at once, A Demonstration of
Vietas Way and the Prostaphereticall way in one sheete Geometrically
done
A Treatise of Angular Sections
A Treatise of Conick Sections in an Analyticall method
A Treatise of Cubick æquations s
of Deschartes, r
an infinite Company of his owne Invention
And having lately facilitated the Solution of such æquations
even of many Dimensions whose rootes are in Arithmeticall
or Geometricall Progression he thereupon undertooke the Solution
of Dr Davenants Probleme, about finding those 4 continuall
Proportionalls, the Summes of whose Squares and Cubes are given
which you have over the leafe after the same manner done, as those
Papers you have already seene, there is a very notable large Letter
from Leibnitz lately arrived, which is not yet in my hands, I hope next
Weeke to transcribe, and send a Duplicate, of it to you, I remaine
Your most humble thankfull
Servitor
John Collins
Farthing Office
fanch
the 3st