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1862. 



Agassiz, A. The Mode of Development of the Marginal Tentacles of the Free 

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Agassiz, Louis. Contributions to the Natural History of the United States, Vol. 

 IV. 4to. Plates. Little & Brown, Boston. $12.00. 



Billings, E. New Species of Lower Silurian Fossils. Svo. pamphlet. 



Bland, Thomas. Remarks on Certain Species of N. A. Helicidae, etc. Svo. pam- 

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Bland, T., and Cooper, J. G. Notice of Land and Fresh-water Shells collected on 

 the Rocky Mountains. Svo. pamphlet. 



Bond, Prof. G. P. Annals of the Observatory of Harvard College, Vol. III., 

 containing an account of the great comet of 1S58. 4to. with Plates. 'Cam- 

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Catalogue of the Trowbridge Collection of Natural History in the University of 

 Michigan. Svo. pamphlet. 



Dana, Prof. Jas. D. Manual of Geology ; treating of the principles of the sci- 

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 $4.00. Bliss & Co., Philadelphia. 



Frick, Dr. J. Physical Manipulations. Translated by J. D. Easter, with preface 

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Gesner, Abraham, Dr., F. G. S. The Gold Fields of Nova Scotia. Svo. pam- 

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Gillis, J. M., Com. U. S. Navy. Astronomical and Meteorological Observations 

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Gillis, Com. J. M. Account of the Total Solar Eclipse of July ISth, 1860. Svo. 

 pamphlet. 



Gould, Augustus A., Dr. Otia Conchologica. Svo. Boston. 



Hagan, Hermann. Synopsis of the Neuroptera of North America', with a list of 

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Harris, T. W. A Treatise on Some of the Insects injurious to Vegetation ; new 

 edition, enlarged and improved, and illustrated with engravings drawn from 

 nature. Edited by C. L. Flint, Sec. Mass. State Board of Agriculture. Svo. 

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Hayden, Dr. F. V. Contributions to the Ethnography and Philology of the 

 Indian Tribes of the Missouri Valley. 230 pages. 4to. 



Hayden, Dr. F. V. On the Geology and Natural History of the Upper Missouri, 

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Hitchcock, E., Hitchcock, E., Jr., Hitchcock, C. H., and Hagar, A. D. Geology 

 of Vermont. 4to. pp. 988. Clarernont, N. H. 



Hittell, John S. Mining in the Pacific States. 16mo. Wiley, N. Y. 



Holmes, E., and Hitchcock, Charles H. General Reports on the Geology and 

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Hooker, Worthington, Dr. First Book in Chemistry. Harper & Bros., N. Y. 



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