6 July 1643] cxxiv. Descartes 5 Reply 
CXXIV. 
Descartes’ Reply to the Authorities of 
the City of Utrecht. 
6 July 1643. 
Printed placard, г8 x 38 cm. 
The c imprimé 3 of Corresp. CCCX VI, voi. IV, p. 16,1. 11, 
sent to Huygens by Descartes together with letter LXXXV a 
[above^p. 209, l. 9), through De Wilhem. 
It is the document beginning й lek hebbe reden . . /, printed 
as Corresp. CCCXIV, voi. IV, pp. 9—12 (translation, ib., 
pp. 646—8). 
APPENDIX F. 
CXXV. 
Descartes and the University of 
Groningen. 
April 1645-. 
One double sheet foolscap followed by one single sheet. Text on la, 
ib, га, and гЬ of sheet 1, and la of sheet г. The whole in Descartes’ hand. 
c La glorieufe piece qui vous efl venue de Groninghe 3 received by 
Huygens on July 6th, 1645” (above, C,p. 238, //. 2-3), concerning 
the printing of which Descartes asked for Huygens* advice (De 
Wilhem to Huygens, letter of 4 July^ ap. Corresp. voi. IV, 
pp. 244-у 3 Briefwisseling, 400y, voi. IV,/. 1673 cf. above, 
C,/. 239, /. 2i, and Ca,p. 241, /.18 f ). 
The two letters from De Wilhem to Huygens (Corresp., loc. 
cit.) should have their order reversed, that printed second being 
really of the ind^ not, like that printed firsts of the yth^ July 
(Correct from Briefwisseling, 4003, voi. IV, p. 167). The 
c eferit 3 of both letters is then one and the same, namely, this 
very set of papers, and De Wilhem is concerned to explain why it 
г 99 ол г