106 [October, 1846. 



Report of the Geological Survey of the province of New Brims- 

 wick, with a topographical account of the Public lands and 

 the districts explored in 1842. By Abraham Gesner, F. G. S., 

 Provincial Geologist, &c. St. Johns, 1843. From the 

 Author. 



Naturgeschichte derr Infusionsthiere. Von Professor S. 

 Kutorga. Mit einem Atlasse. St. Petersburg, 1839. Carls- 

 ruhe, 1841. From L. de Harden, Esq., through Charles 

 Cramer, Esq. 



Classification of the forest trees of New Brunswick. By M. 

 H. Perley, Esq. (a newspaper slip.) From the Author. 



A letter was read from J. M. B. Harden, M. D., of Liberty 

 county, Georgia, dated 18th September, 1846, acknowledg- 

 ing the receipt of his notice of election as a correspondent. 



Also a letter from J. H. Bedfield, Esq. , Corresponding Sec- 

 retary of the N. Y. Lyceum, dated 24th September, 1846, 

 acknowledging the receipt of the last number of the Proceed- 

 ings. 



Dr. Dickeson exhibited a large and remarkably varied series 

 of fossil bones, obtained by him from the vicinity of Natchez, 

 Miss. The collection embraces the entire head and half of the 

 lower jaw of the Megalonyx Jeffersoni,* now for the first time 

 discovered ; together with many parts of the skeleton, and indeed 

 of several skeletons of that animal, sufficient to enable its com- 

 plete osteological reconstruction. The stratum that contains these 

 organic remains, is a tenacious blue clay that underlies the dilu- 

 vial drift east of Natchez, and which diluvial deposit abounds in 

 bones and teeth of the Mastodon giganteum. 



* Dr. Dickeson originally suggested, from partial comparisons, that 

 this cranium belonged to the Megalonyx, and not to the 'Mylodon, as others 

 had supposed ; his opinion was fully confirmed by M. Agassiz on 

 a recent examination ; and this distinguished naturalist has proved the 

 Megalonyx laqueatus of Harlan, to belong, not to Megalonyx, but to some 

 other but nearly allied genus. 



