142
Mathematical Principles
Book 1.
the ſame order of letters, and ſimilar to the trapezium FGHI, a trapezium fghi is conſtructed, and a trajectory given in kind is circumſcribed about it, the problem will be ſolved.
So far concerning the finding of the orbits. It remains that we determine the motions of bodies in the orbits ſo found.
Sect-
