2 CATALOGUE OF NEWTON PAPERS. 



II. ELEMENTARY MATHEMATICS. (Holograph.) 



1. Observations on the Algebra of Kinckhuysen. 



2. The first Ten Propositions of the 2nd book of Euclid, suc- 

 cinctly enunciated and demonstrated. 



3. Theorem on the Area of a Triangle. 



4. Trigonometria succincte proposita et nova methodo demon- 

 strata a S* Joanne Hareo Arm. 



5. A few MS. leaves, containing Compendium Trigonometriae. 

 It includes Spherical Trigonometry. Intended for learners. 



6. Table of sines to every half degree. 



III. FLUXIONS. 



1. Transcript of a Tract on Fluxions said to have been written 

 by Newton in November, 1666. 



2. Tract relating to the History of Fluxions, transcribed from 

 one which was probably written by Jones. 



3. Part of Newton's method of Fluxions and Infinite Series, with 

 a fragment of the same treatise. (Holograph. ) 



4. Part of a Tract on Fluxions. 



5. Some Propositions in Fluxions. ["I think this fragment 

 very proper to be published." Horsley, Oct. 22, 1777.] 



6. Analysis per quantitates fluentes et eorum momenta. 



7. Method of Fluxions and Infinite Series. 



8. On the solution of Fluxional Equations. 



9. Fluxions applied to Curves. 



10. Propositions in the Method of Fluxions (dotted letters em- 

 ployed). 



11. Propositions in Fluxions (dotted letters employed). 



12. An early paper on deducing the subnormal in a curve from 

 a given rational relation between x and y, and the converse operation. 



1 3. Fragments on Fluxions. 



14. Method of Curves and Infinite Series, and application to the 

 Geometry of Curves. Complete all but the 1st leaf. 



IV. ENUMERATION OF LINES OF THE THIRD ORDER. (Holograph/ 



1. An early copy. 



2. A later copy. 



