Sir Isaac Newton
has moved!
If you aren't automatically redirected, use this link to get to the new page:
http://www.grtbooks.com/SirIsaacNewton/
SirIsaacNewton
?idx=2&aa=TW&at=MA&yr=1704
Principia.asp
Mathematical Principles of Natural Philosophy (or, the Principia)
Opticks.asp
Opticks