SECTION VI. LETTERS. 



45 



*xv. 



LIST OF THE LETTERS OF NEWTON, MOSTLY PUB- 

 LISHED IN THE MACCLESFIELD CORREPSONDENCE. 



Newton to Collins 



These are fair copies. 



No. 

 Maccl. Corr. ccxxiv 



Jan. 1669 

 Feb. 6, 1669 

 Feb. 23, 1668-9 



and comment by Collins 

 Newton to Aston May 18, 1669 



Collins 



Oldenburg 



Feb. 18, 1669-70 

 July 11, 1670 

 July 16, 1670 



Sept. 27, 1670 

 July 20, 1671 



Jan. 6, 1671-2 



Jan. 18, 1671-2 



Jan. 29, 1671-2 



Feb. 10, 1671-2 



Feb. 20, 1671-2 



ccxxv 



CCXXVI 



CCXXVII 



CCXXVII1 



CCXXIX 



CCXXXI 



CCXXXIII 



CCXXXIV 



ccxxxv 



CCXXXVI 



CCXXXVII 



CCXXXVIII 



Collins 

 Oldenburg 



CCXXXIX 



March 26, 1672 Phil. Trans. No. 82, p. 4032 

 March 30, 1672 No. 82, p. 4034 

 April 13, 1672 No. 83, p. 4059 

 May 4, 1672 No. 83, p. 4057 



May 21, 1672 not in Phil. Trans. 

 May 25, 1672 Maccl. Corr. CCXLI 

 June 19, 1672 CCXLII 

 July 6, 1672 CCXLIIT 



July 11, 1672 Phil. Trans. No. 88, p. 5084 

 a long letter on Optics in reply to Mr Hook's "Con- 

 siderations". 



Collins July 13, 1672 Maccl. Corr. CCXLV 



Oldenburg July 13, 1672 CCXLVI 

 Collins July 30, 1672 CCXLVII 



Oldenburg Sept. 21, 1672 CCXLIX 



March 8, 1673 CCLI 



Oldenburg? April 3, 1673 CCLII 

 in answer to Hugenius' letter of Jan. 14, 1673. 



Newton to Collins 



April 9, 1673 

 May 20, 1673 



CCLIII 

 CCLIV 



