CONTEJSTS. 



I. Researches relative to the Planet Neptune. By Sears C. Walker, Esq. 



II. On the Vocal Sounds of Laura Bridgeman, the Blind Deaf Mute at Boston ; connpared with 

 the elements of Phonetic language. By Dr. Francis Liebee- 



III. Microscopical Examination of Soundings, made by the U. S. Coast Survey off the Atlantic 



Coast of the United States. By Prof. J. W. Bailey. 



IV. Contributions to the Physical Geography of the United States. By Charles Ellet, C. E. Part I. 

 V. Mosasaurus and the three allied new Genera, Holcodus, Conosaurus, and Amphorosteus. By 



Robert W. Gicbes. 

 VI. The Classification of Insects, from Embryological data. By Prof. Louts Agassiz. 

 VII. On the Explosiveness of Nitre, with a view to elucidate its agency in the tremendous Explo- 

 sion of July, 1845, in New York. By Dr. Robert Hare. 



VIII. Microscopical Observations made in South Carolina, Georgia, and Florida. By Prof. J. W. 

 Bailey. 

 IX. Aboriginal Monuments of the State of New York, comprising the results of original Surveys 

 and Explorations ; with an Illustrative Appendix. By E. G. Suuiee. 



APPENDIX. 



I. Ephemeris of the Planet Neptune, for the date of Lalande observations of May 8 and 10, KOS, 



and for the oppositions of 1846, 1847, 1848, and 1849. By Sears C. Walker, Esq. 



II. Ephemeris of the Planet Neptune, for the year 1850. By Sears C. Walker, Esq. 



III. Ephemeris of the Planet Neptune, for the year 1851. By Sears C. Walker, Esq. 



IV. Occultations visible in the United States during the year 1 §51. Computed by John Downes, Esq. 



