398 JAMES CLERK MAXWELL. [CHAP. XIL 



Promoters 

 WREN, WALLIS, HUYGHENS, HOOKE. 



Laws of collision established, and motion in a circle. 



NEWTON. 



Three laws of motion. Form suggested by the laws of 

 Descartes. Meaning established by Newton's own copious 

 and complete examples of using them. 



Second statement of Newton's third Law. 



My notions on the three laws are in " Matter and 

 Motion." 



NEWTONIANS. 



Cambridge School. Popularisers. Scotch School. 



Eoger Cotes. D. Gregory. Colin Maclaurin. 1 



Eobert Smith, etc. Desaguliers. James Gregory. 



Attwood. Mme. du Chatelet J. Playfair. 



Whewell. and Voltaire. Ivory. 



Leibnitz and the Vis Viva Controversy. 



Methods of dealing with connected systems. 



Example of correct methods by Newton and others 

 before D'Alembert. 



D'Alembert's enunciation. Its historical importance. 



Euler. The Bernoullis, etc. Laplace, the flower of 

 this stage of development. 



Lagrange and Virtual Velocity. 



This is the germ of the method of energy which was 

 fully developed in mathematical form in the Mecanique 

 Ancdytigue, but very little appreciated outside the inner 

 circle of mathematicians till the physical theory of energy 

 became generally known. 



Mathematical development of higher dynamics. (See 

 Cayley's Brit. Ass. fieport, 1857 and 1862 ? specially 

 Hamilton and Jacobi. 



Effect of T and T' since 1867. 



jn 



1 Introduces M -r-~- = X etc. See Maclaurin's Fluxions, 

 at* 



