XXIV 
Table of Contents 
Serial number 
Date 
PAGE 
LXV. 
From Descartes 
to ^ Huygens 
xc? July 164.1 
1 y y 
LXVL 
Descartes 
Huygens 
xx Jan. 164.x 
ry 9 
LXVIL 
Huygens 
Descartes 
ay Jan. 164a 
161 
LX VII a. 
Descartes 
Huygens 
31 Jan. 164a 
164. 
LXVIIL 
Descartes 
Huygens 
[a6 Apr. 164.x] 
167 
LXIX. 
Descartes 
Huygens 
a 6 Apr. 164.x 
168 
LXX. 
Huygens 
Descartes 
xy Apr. 164.x 
170 
LXXL 
Descartes 
Huygens 
4. May 164.x 
iyx 
LXXIL* 
Huygens 
Descartes 
x6 May 164.x 
LXXIIL 
Descartes 
Huygens 
1 Sept. 164.x 
LXXIV. 
Huygens 
Descartes 
6 Sept. 164.x 
176 
LXXV. 
Descartes 
Huygens 
6 Oct. 164.x 
1 77 
LXXVL 
Huygens 
Descartes 
7 Oct. 164.x 
17 9 
LXXVIL* 
Descartes 
Huygens 
10 Oct. 164.x 
180 
LXXVIIL 
Descartes 
Huygens 
y Jan. 164.3 
183 
LXXIX. 
Huygens 
Descartes 
7 Jan. 164.3 
i«y 
LXXX.* 1 
Descartes 
Huygens 
14. Jan. 164.3 
!8 7 
LXXXL* 
Descartes 
Huygens 
18 Feb. 164.3 
189 
LXXXII. 
Descartes 
Huygens 
xx May 164.3 
15)8 
LXXXIIL* 
Descartes 
Huygens 
14. May 164.3 
*99 
LXXXIV.* 
Huygens 
Descartes 
6 June 164.3 
xox 
LXXXV. 
Descartes 
Huygens 
16 June 164.3 
xoy 
LXXXV 
a. Descartes 
Huygens 
10 July 164.3 
XOf) 
LXXXVL 
Descartes 
Huygens 
xo Sept, 164.3 
XIO 
LXXXVIL 
Huygens 
Descartes 
y Oct. 164.3 
XI4- 
LXXXVIIL 
Descartes 
Huygens 
17 Oct. 164,3 
xl6 
LXXXIX. 
Descartes 
Huygens 
1 Nov. 164.3 
xl8 
XC. 
Huygens 
Descartes 
x Nov. 164.3 
XI9 
XCI. 
Descartes 
Huygens 
xy Nov, 164.3 
XXI 
XCIL 
Huygens 
Descartes 
X3 Nov. 164.3 
xx6 
XCIIL 
Huygens 
Descartes 
ly Feb. 1644 
xx8 
XCIV. 
Descartes 
Huygens 
x6 Feb. 1644 
X30 
XCV* 
Huygens 
Descartes 
14, Mar, 1644 
X3X 
XCVI. 
Descartes 
Huygens 
13 Nov. 1644 • 
X33 
XCVII. 
Descartes 
Huygens 
xi Dec. 1644 
X34. 
XCVIII. 
Huygens 
Descartes 
16 Jan. 1644 
x 3 y 
XCIX. 
Descartes 
Huygens 
17 Feb. 1644 
X36 
c * 
Huygens 
Descartes 
7 July 164.7 
X38 
Ca. 
Descartes 
Huygens 
4- Aug. 1644 
X4.0 
Cb. 
Descartes 
ff' I luygens 
[? Jan. 164.6] 
X4.X 
1 Last paragraph omitted in Clerselier’s text.