XL 



March. 1850. Charlestown. 1850; V. Meet. May 1851. Wa- 

 shington 1851; VI. Meet. Aug. 1851. Washington. 1852. 8. 



Proceedings of the American Academy of Arts and Sciences of 

 Boston. Vol. III. p. 1—104. 1852. 8. 



Mineral Notices. Nr. V. (From the American Journal of Science 

 and Arts, 2d Ser. Vol. XV. May, 1853.) p. 430—449. 8. 



Characters of some New Genera of Plants mostly from Polynesia. 

 By Asa Gray. (From the Proceedings of the American Aca- 

 demy of Arts and Sciences. Vol. III.) Cambridge. 1853. 8. 



Notices of New Species of Mosses from the Pacific Islands. By 

 Will. S. S. Sullivant. Cambridge. Jan. 1854. 8. p. 1—12. 



Memoir of S. G. Morton, late President of the Academy of Nat. 

 Sc. of Philadelphia. By Ch. I). Meigs. Philadelphia. 1851. 8. 



Dana, Jacobus D. Conspectus Crustaceorum, quae in Orbis Terra- 

 rum circumnavigatione, Caroli \\ ilkes e classe Foederatae Duce. 

 Cantabrigiae. 1847 — 49. (From the Proceedings of the Ame- 

 rican Academy of Arts and Sciences. Vol. II. Nov. 1849.) 8. 



— — Conspectus Crustaceorum etc. Crustacea Paguridea. (Ex 

 Academiae Scientiarum naturalium Philadelphiensis Nuntiis. 

 Anno 1851. Vol. V.) 8. 



— — Conspectus Crustaceorum etc. Crustacea Grapsoidea. (Ex 

 Acad. Scient. natur. Phil, nuntiis. Anno 1851.) 8. 



— — Conspectus Crustaceorum etc. Conspectus of the Crusta- 

 cea of the Exploring Expedition under Capt. Wilkes, U. S. N. 

 lncluding the Paguridea continued, the Megalopidea, and the 

 Macroura. (From the Proceedings of the Acad. of Nat. Scienc. 

 of Philad. Jan. 1852.) 8. 



— — Conspectus Crustaceorum etc. Conspectus of the Crusta- 

 cea etc. Crustacea Cancroidea and Corystoidea. (From the 

 Proceedings of the Acad. of Nat. Scienc. of Philad. May 1852.) 8. 



— — Conspectus of the Crustacea etc. Paguridea, continued, 

 Megalopidea and Macroura. (From the Amer. Journ. of Scienc. 

 and Arts, 2nd Series, Vol. XIV. July 1852.) Abstract of a 

 paper in the Proceed. Acad. Nat. Sc. Philad. 1852. 8. 



— — On certain laws of Cohesive Attraction. (From the Am. 

 Journ. Sc. 2nd Ser., Vol. IV. Nov. 1847.) 8. 



— — Conspectus Crustaceorum quae in Orbis Terrarum circum- 

 navigatione, Carolo Wilkes e classe Reipublicae Foederatae 

 Duce. etc. (From the Amer. Journ. Sc. 2nd Series. Vol. XI. 

 Nr. 32. March. 1851.) 8. 



