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Boston, 25th May, 1852, returning an acknowledgment for 

 No. 47 of the Proceedings: — 



From J. H. Alexander, dated Baltimore, 24th May, 1852; 

 from John J. Reese, dated June 4, 1852; and from John Neill, 

 dated June 17, 1852, severally acknowledging the receipt of 

 notice of their election as members of this Society: and — 



From Isaac Lea, dated Philadelphia, June 2, 1852, convey- 

 ing his resignation as a member of the Committee of Finance, 

 and of the Committee of Publication, in consequence of ab- 

 sence from the city. 



The following donations were announced: — 



FOR THE LIBRARY. 



Observations made at the Magnetical and Meteorological Observato- 

 ry at Hobarton, in Van Diemen Island. Printed by Her Majes- 

 ty's Government, under the superintendence of Col. Edward Sa- 

 bine, of the Royal Artillery. Vol. II. Commencing with 1843 ; 

 with Abstracts of the Observations from 1843 to 1850, inclusive. 

 London. 1852. 4to. — From the British Government. 



Flora Batava, of Afbeelding en Beschrijving van Nederlandsche 

 Gewassen : door Jan Kops en J. E. Van der Trappen. Aflever- 

 ing 165. Amsterdam. 4to. — From the King of the Nether- 

 lands. 



Monthly Notices of the Royal Astronomical Society. Vol. XII. No. 

 5. March 12, 1852. London. 8vo. — From the Society. 



Transactions of the Cambridge Philosophical Society. Vol. X. Part 

 2. Cambridge, 1851. 4to. — From the Society. 



Annales des Mines. Quatrieme Serie. Tome XX. Livr. 5 de 1851. 

 Paris. 8vo. — From the Ecole des Mines. 



Proceedings of the Academy of Natural Sciences of Philadelphia. 

 Vol. VI. No. 2., with Title and Index to Vol. V. Philada. 1852. 

 8vo. — From the Academy. 



Collections of the New York Historical Society. Vol. IV. 1829. 

 8vo. 



Proceedings of the same, for 1844, 1845, 1846, 1848, 1849. 8vo 



From the Society. 



Annual Report of the Trustees of the New York State Library : 

 transmitted to the Legislature, March 9, 1852. Albany. 8vo. — 

 From the Trustees. 



