 the Royal Society was unable to meet its promise to finance the publication of Newton's "Philosophiae Naturalis Principia Mathematica" and let this to the clerk of the society who was best known for computing what?
De Historia piscium:  This resulted in the society being unable to meet its promise to finance the publication of Newton's "Philosophiae Naturalis Principia Mathematica" (""Mathematical Principles of Natural Philosophy"", better known simply as "Principia"), leaving this to Edmond Halley, who was then the clerk of the society.
i don't know