( 2i39 ) 



45. Le Maire dii Palais, tragedie; par M. Ancelot* 

 Paris , 1823. In-8*'. — M. Lorain , Rapporteur. 



46. Ouvrages de M. Herschel ; 



1 .° A Collection of examples of the Application of 

 the calculus of finite differences , by J. Fr. W.. 

 Herschf.l F. R. S. London et Edinb. etc. , etc« 

 Cambridge , 1820. ln-8". 



2.° On the places of i^5 double stars. London ^ 

 3821. In-4.° 



3." On the aberrations of compound lenses and 

 "object glasses, London, 1821. 111-4". 



4°. On certain remarkable instances of deviation, 

 from Newtoii^s scale in the tints developped by 

 crystals with one axis of double refraction on expo- 

 sure to polarised light, 1820. In-4°' 



5°. On the rotation impressed , by plates of rock 

 crvslal on the planes ''of polarisation of the rays of 

 light as connected , with certain peculiarities in its 

 crystallisation. Cambridge, 1820. 



6.'' On a remarkable peculiarity in the law, of the 

 extraordinary refraction of differently coloured rays 

 exhibited by certain varieties of apophillite. Cambrid. 

 1821. In-4^ 



7°. On the separation of iron from other metals. 

 London, 1822. Jn-4°. 



8." On the reduction of certain classes of func- 

 tional equations to equations of finite differences. 

 Cambridge, 1820. In-4". — M. d'Aumowt , Ka/?. 



47. Ouvrages de M. BabbagE. 



1°. A letter to sir Humphry Davy on tke appli^ 

 Cation of machinery to the purpose of calculating; 



