IV.

Dec. 15,

"} imperfect. Dec. 29, 1681.

Dec. 27,

CORRESPONDENCE WITH FLAMSTEED. Flamsteed to Newton,

1680. Flamsteed to Crompton (for Newton) March 7, 1680-1, with an extract in Newton's hand from a letter of Flamsteed dated Feb. 12th, 1680-1. Newton to Flamsteed,

April 12, 1681. Draft of Newton to Flamsteed,

April 16, 1681, pr. by

Brewster, ii. 455.
Draft of Newton to Flamsteed

Canterbury, Dec. 29th,
The above all relate to the comet of 1680.
Flamsteed to Newton,

1684.
Jan. 5, 1684-5.
Jan. 27, 1684–5.
Sept. 26, 1685.
Oct. 10, 1685.

Sept. 9, 1686.
Flamsteed to Mr Glen, April 10, 1693. Concerning earth-

quakes. Copy made for Newton, with
a note concerning Flamsteed's star-

maps. Flamsteed to Newton,

Sept. 7, 1694.
Oct. 11, 1694. (Printed in Baily's

Flamsteed, p. 134.)
Oct. 25, 1694.
Oct. 29, 1694.
Nov. 3, 1694.
Nov. 27, 1694.

1694.
Dec. 31, 1694.
Jan. 18, 1694-5.
Jan. 29, 1694-5.
Feb. 7, 1694-5.
March 2, 1694-5.
March 21, 1694-5.
April 20, 1695.
April 27, 1695.
May 6, 1695.
July 2, 1695.

9

Dec. 10,

Flamsteed to Newton,

July 13, 1695.
July 18, 1695.
July 23, 1695.
Aug. 4, 1695.
Aug. 6, 1695.
Sept. 19, 1695.
Jan. 11, 1696.
Sept. 4, 1697.
Dec. 10, 1697.
Dec. 29, 1698. Note by Flamsteed

of the no. of observations of planets

taken between 1675 and 1689. Flamsteed to Dr Wallis, Dec. 20, 1698. Printed copy of Latin

letter. Flamsteed to Newton, Jan, 2, 1698–9.

V.

GREGORY TO NEWTON.
David Gregory to Newton, June 9, 1684.

Sept. 2, 1684.
August 27, 1691.
Oct. 10, 1691.
Nov. 7, 1691.
Nov, 7, 1691.
Nov. 26, 1691.
Sept. 24, 1694.
Dec. 23, 1697.

Sept. 30, 1702.
Newton to Gregory (draft), no date, about 1691.

VI.

LETTERS FROM HALLEY TO NEWTON RELATING TO

THE PUBLICATION OF THE FIRST EDITION OF
THE PRINCIPIA.'
May 22, 1686. Printed in Brewster's Life of Newton,

Append. 8 & 12 to Vol. i.

p.

438 June 29, 1686.

p. 446

June 7, 1686. Printed in Brewster's Life of Newton,

Append. 8 & 12 to Vol. i. p. 472 Oct. 14, 1686. Feb. 24, 1686–7. March 7, 1686–7. March 14, 1686–7. April 5, 1687. July, 5, 1687.

Vol. ii. p. 111

2

p. 473 p. 474 p. 475 p. 476 p. 477

VII.

HALLEY TO NEWTON ABOUT COMETS ORBITS.
Halley to Newton, Sept. 7, 1695.

Sept. 28, 1695.
early in Oct. 1695.
Oct. 15, 1695, with observations of a Comet

May 1665.
Newton to Halley, Oct. 17, 1695, with draft of same letter.
Halley to Newton, Oct. 21, 1695.
Draft of a letter by Newton to Halley.
Halley to Newton, Feb. 16, 1725.
Newton to Halley, March 1, 1725, with draft of same letter.
A calculation of Halley relating to the Comet of 1680—on a

separate sheet.

* VIII.

HALLEY TO NEWTON AND MOLYNEUX, RELATING

TO THE CHESTER MINT.

...

...

IX. COTES'S LETTERS TO NEWTON, MOSTLY PUBLISHED

IN EDLESTON'S CORRESPONDENCE OF NEWTON

AND COTES, Together with three Letters and a Memorandum by Robert Smith relating to the foregoing letters and the publication of Cotes's works.

Edleston.

Page
Cotes to Newton. April 15, 1710,

8
April 29,

12 May 7,

16 May 20,

20 June 1,

25 June 11,

28 June 30,

31
Sept. 21,

34
imperfect in Edleston.
Oct. 5, referred to in p. 37
Oct. 26,
March 31, 1711

40
June 4,
June 9,

42
only a fragment in Edleston.
June 23,

44
Crownfield (printer)
to Newton

July 11, 1711
Cotes to Newton. July 19,

50
July 30,

52 Sept. 4,

54 Oct. 25, not in Edleston. Feb. 7, 1711-12

57 Feb. 16,

61

75 March 13,

79 April 14, 1712

91 April 15,

93
April 26,

May in MS. wrongly.
May 1,

103
May 3,

106

09

Feb. 28,

១)

... 121

Edleston.

Page
Cotes to Newton, May 13, 1712

114
Aug. 10,
Aug. 17,

127
Aug. 28,

132 Sept. 6,

136 Sept. 15,

140 Oct. 23,

143 Cotes to Bentley. March 10, 1712-13

149 Dec. 22, 1713

166 Cotes to Newton. April 29, 1715, On the Eclipse of the Sun, 22nd April, partly given in Edleston, p. 179.

Robert Smith to Newton, relating to the publication of Cotes's works, Dec. 23, 1718; Aug. 12, 1720.

Robert Smith to John Conduitt, Esq., Feb. 4, 1732—3, asking for the loan to him of the foregoing letter of Cotes on the Eclipse.

Also a memorandum dated June 6, 1738, acknowledging the receipt of certain letters of Cotes to Newton lent to him by Mrs Conduitt.

X.

ROUGH DRAFTS OF SOME OF NEWTON'S LETTERS

TO COTES. The letters in Edleston and the pages to which these drafts relate are given in the following list :

page 14

XI.

Letter VI.
VIII.

19

24 XIII.

27 XV.

30 XLII.

83 XLIII.

89 XLVI.

94-98 LXI.

129
LXXXI.

154
This is rather fuller than the letter printed by Edleston.

Letter LXXXII.

page 156