OF ARTS AND SCIENCES. 43 



par I'Academie Royale des Sciences et Belles-lettres de Bruxelles. 

 Tom. XVII. & XVIII. (1843- 1845). 4to. From the Academy. 



Bulletins de TAcademie Royale des Sciences, etc., de Bruxelles. 

 Tom. XI. & XII. (for 1844, 1845). 8vo. From the Academy. 



Annuaire de I'Academie Royale des Sciences, etc., de Bruxelles. 

 For 1844 and 1845. From the Academy. 



Annales de I'Observatoire Royale de Bruxelles. Publics aux frais 

 de r£tat, par le Directeur, A. Quetelet. Tom. IV. 4to. 1845. 

 From M. Quetelet. 



Observations des Phenomenes Periodiques. (Extr. du Tom. XVII. 

 des Mem. Acad. Brux.) 4to. From M. Quetelet. 



Two hundred and eighty-ninth Meeting. 

 December 1, 1846. — Monthly Meeting. 



The Vice-President in the chair. 



Dr. C. T. Jackson exhibited specimens of gim-cotton, ex- 

 plained the mode of preparation, and illustrated its effects. 

 He also exhibited specimens of paper prepared in a similar 

 way, which was shown to acquire nearly the firmness of vel- 

 lum, and to have become somewhat impermeable to water. 



Mr. Agassiz made some remarks on the points of resem- 

 blance between the flora of the fresh- water Molasse (later mio- 

 cene) of Europe and the existing flora of North America, al- 

 luding to the fossil fruits, &c., in the former of such pecu- 

 liarly North American genera as Taxodium, Liquidambar, 

 Carya, etc., and to a considerable prevalence of JuglandecB^ 

 as facts not only very curious in themselves, but also as ev- 

 idence that Europe, at the era in question, possessed a tem- 

 perate (and not a tropical) climate. 



Dr. Webster communicated from Mr. Hunt, the British 

 Consul at St. Michaels, Azores, the annexed table, containing 

 the results of his meteorological observations made at that 

 place. 



