CATALOGUE OF PUBLICATIONS. 405 



16. The ChissificatioM of rnsects from Embryologi(!al Data. D.v LouiS 



Agassiz. 1850. Uo., pp. 28, 8 woodcuts, one plate of 2.3 liguies. 



(S. C, ir.) 



17. JNIemoir on the Explosiveness of Nitre, with a view to ehicidatc it« 



agency in the tremendous explosion of July, 1845, in New York. 

 By Egbert Hare. 1850. 4to., pp. 20. (S. C il) 



18. Keport on the History of the Discovery of Neptiuie. 15y Uen-jamin 



xVpthorp Gould, .Ir. 1850. Svo., pp. 50. 



19. Directions for Meteorological Observations, intended for the llrst 



class of observers. By Arnold Guyot. 1850. 8v()., ])p. 10, 

 9 woodcuts. 



20. IMicroscopical Examinations of Soundings, made by the United 



States Coast Survey olf the Atlantic coast of the United States. 

 By J. W. Bailey. January, 1851. 4to., pp. 10, and 1 plate of 

 08 figures. (S. C., ii.) 



21. Fourth Annual Ileport of the Board of llegents of the Smithsonian 



Institution, for the year 1849. Thirty-first Congress, first ses- 

 sion. Senate Mis. No. 120, 8vo., pp. 04, with appendix of 207 

 pp. House of Bepresentatives Mis. No. 50. 1850. 8vo , i)p. 272. 



CONTKXTS. 



Report of I'lof. J. Henry, ;iud in'oceediugs of tbo Board. 



Gkav, Asa. Account of Lindbcimer's, Feudler's, and Wright's botanical 



explorations in New Mexico and Cabfornia. 

 Agassiz, Louis. On tbe foriuation of a nmseum. 

 Li.st of meteorological observers. 



Jewett, C. C. Report on library and catalogue system. 

 Jewett, C. C. Report on public libraries of tbe United States. 



22. riantiie Wrightianoe Texano-Neo-MexicantB. By A SA Gray. Part 



1. ]\rarch, 1852. 4to., pp. 140, 10 plates of 127 figures. (S. C, 

 III.) 



An account of a collection of plants made by Charles Wright in Western 

 Texa.s, New Slexico. and Souora, in the years 1851 and 1853. 



23. Microscopical Observations made in South Carolina, Georgia, and 



Florida. By J. W. Bailey. 1851. 4to., pp. 48, 3 plates of 83 

 figures. (S. C, ii.) 



24. Ephemeris of the I^lanet Neptune for the year 1852. By Sears C. 



Walker. 1853. 4to., pp. 10. (S. C, iii.) 



25. Notices of Public Libraries in the United States of America. By 



Chas. C. Jewett. Printed by order of Congress, as an ap- 

 pendix to the Fourth Annual Report of the Board of Regents of 

 the Smithsonian Institution. 1851. 8vo., pp. 210. 



