76 



dibles, dark horn-color at tip and half way along sides. Male 

 brilliant shining emerald on chin, throat and upper part of breast. 

 Head, upper part of neck and back dull golden green with some 

 metallic reflections. Lower part of breast, belly, under tail cov- 

 erts, central and upper part of tail feathers light bay. Tips and 

 both sides of central tail feathers and outer side of lateral tail 

 feathers dark golden green with metallic reflections. Vent white. 

 Female nearly the same as male, but rufous instead of bright 

 emerald on chin, neck, &c., and less white about vent. This is 

 the most common humming-bird found in Yucatan. It was seen 

 in numbers about the acacias which grew upon the tops of the 

 ruined buildings, where the specimens, from which the above 

 description was taken, were procured. 



ADDITIONS TO THE LIBRARY. 



Teschemacher, J. E. Essay on Guano. Pamph. 8vo, pp. 51. 

 Boston, 1845. From the Autlior. 



Chapman, A. W., M. D. List of Plants growing spontaneously 

 in the vicinity of Quincy, Florida. Pamph. 8vo. 1845. From 

 the Author. 



Menke, C. T. Molluscorum Novte HoUandia? Specimen. 4to. 

 Hanoverian, 1843. From Dr. J. Torrey. 



Gibbes, Robert W., M. D. Descriptions of the Teeth of a 

 New Fossil Animal from the green sand of South Carolina. 

 Pamph. 8vo. Philadelphia, 1845. From the Author. 



Von Osersky, A. Geognostische Umriss des Nord-Westlichen 

 Ehstlands. Pamph. 8vo, pp. 65. St. Petersburg, 1844. From 

 the Author. 



Von Osersky, A. Mineralogisch-Chemische Abhandlungen. 

 Pamph. 8vo, pp. 42. St. Petersburg, 1844. From the same. 



Saunders, W. W. Addresses before the Entomological So- 

 ciety of London. 1842 and 1843. pamph. 8vo. From the 

 Entomolog. Society. 



Newport, George. Addresses before the Entomological So- 

 ciety of London. 1844 and 1845. Pamph. 8vo. From the 

 same. 



Journal of Proceedings of the Entomological Society of Lon- 

 don. For 1841. From the same. 



