546 Proceedings of the Asiatic Society. [No. 6. 



Mr. Piddington read the following three papers and exhibited the 

 filtering apparatus referred to in one of them. 



1st. Description of a cheap and simple apparatus for distilling off 

 the Mercury from an Amalgam of gold or silver. 



2nd. Ou filtering the water of tanks in large quantities for the 

 use of towns. 



3rd. On a Geometrical Measurement of the distances from Crest to 

 Crest of the Barometric Waves in a Cyclone. 



The Curator of the Zoological Department of the Museum exhi- 

 bited, in sheets, a copy of his catalogue of birds the publication of 

 which has been delayed by his desire to consult references which have 

 only lately become available. 



The Curator of the Museum of Economic Geology and the Librarian 

 having submitted their usual monthly reports the meeting adjourned. 



(Signed) J. W. Colvile. 



Confirmed, September, 1st, 1852. 



Library. 



The following books have been added to the Library since June last. 



Presented. 



Catalogus Codicum Orientalium Bibliothecse Academise Lugdino Ba- 

 tavae. Auctore R. P. A. Dozy. Vol. II. Lugduni Batavarum 1851, 8vo. — 

 Presented by the Curators of the Academy of Leyden. 



Sitzungsberichte der kaiserlichen Akademie der Wissenschaften. Mathe- 

 matisehe Naturwissenschaftliche Classe, for 1849-50, (less No. for Dec. 

 51.) (Nos. 1 to 4 of Vol. VI. and Nos. 3 and 4 of Vol. VII.)— By the 

 Imperial Academy of Natural Sciences, Vienna. 



Ditto ditto, Philosophisch-historische Classe for 1849-50 and 51, (of Vol. 

 VII. heft, 3, 4 and 5).— By the same, 50 and 5L 



Denkschriften der kaiserlichen Akademie der Wissenschaften. Mathe- 

 matische Naturwissenschaftliche Classe, Vols. I. and II. and Part 1. of Vol. 

 III. — By the same. 



Ditto ditto, Philosophisch Historische Classe, Vols. I. and II. Parts 1 and 

 2. — By the same. 



Fontes rerum Austriacarum, osterreichische Geschichtsquellen. Zweite 

 Abtheilung Diplomata et acta. III. Band. Liber Fundationis Monasterii 

 Twetlensis. Vienna 1851, 8vo. — By the same. 



Archaeologische Analecten von Joseph Arneth. Wien. — By the same. 



Die Alterthiimer von Hallstatter Salzberg und dessen Umgebung. Von 

 Friedrich Simony. — By the same. 



Literaturgeschichte der Araber. Von ihrem Beginne bis zu Ende des 



