247 



Macquer. Seconde Edition. Paris, 1778. 2 Vols. 4to. — From 

 the same. 



Le Nouveau Parfait Marechal, ou la Connoissance Generale et Uni- 

 verselle du Cheval. Par M. Fr. A. de Garsault. Troisieme 

 Edition. Paris, 1755. Aio.— From the same. 



CEuvres de M. Franklin, Docteur es Loix. Traduites de 1' Anglais 

 sur la Quatrieme Edition. Par M. Barbeu Dubourg. Avec des 

 additions nouvelies. Paris, 1773. 2 Vols, in 1. 4to. — From 

 the same. 



Histoire Philosophique et Politique des Etablissemens et du Com- 

 merce des Europeans dans les deux Indes. Par Guillaume Ray- 

 nal. Geneva, 1780. 10 Volumes. 8vo. — From the same. 



Recueil concernant le Tribunal de Nosseigneurs les Marechaux de 

 France. Par M. De Beaufort. Paris, 1784. 2 Vols. 8vo. 

 From the same. 



Histoire de I'Administration de Lord North, Ministre des Finances 

 en Angleterre, depuis 1770, jusqu'ea 1782, et de la Guerre de 

 I'Amerique Septentrionale, jusqu'a la Paix. Suivie du Tableau 

 Historique des Finances d' Angleterre, depuis Guillaume III. jus- 

 qu'ea 1784. Paris, 1784. 2 Vols. 8vo. — From the same. 



ADDITIONS TO THE LIEKARY BY PURCHASE. 



Astronomische Nachrichten. Nos. 552 and 553. 4to. 

 Comptes Rendus Hebdomadaires des Seances de 1' Academic des Sci- 

 ences. Tome XXI. No. 17 to 25, inclusive. 4to. 



Dr. Boye exhibited several mineralogical specimens from 

 the bituminous coal measures of Pennsylvania; among others, 

 sulphate of magnesia, both in fibrous crystals and in porous 



masses. 



It was found in the neighbourhood of Salzburg, on the Kiskimi- 

 nitas river, under a protruding ledge of rocks, from which the water, 

 charged with the sulphate of magnesia, drops down. 



Dr. B. also exhibited several specimens of argillaceous carbonate 

 of iron, or nodular iron ore, containing, inside, a white crystalline 

 mineral, which he had found to be sulphate of baryta; and also a 

 curious nodular iron ore, from the neighbourhood of Brighton, on the 

 Beaver creek, consisting of small oolitic concretions of iron ore (car- 

 bonate of iron with sesquioxide of iron) of a light brownish colour, 

 and imbedded in a white sparry mass, consisting of a mixture of sul- 

 phate of baryta with some sulphate of lime and silica. 



