388 MASSACHUSETTS HORTICULTURAL SOCIETY. 



Gray, Asa, M. D. Botanical Contributions. 1. Elatines Americana!. 2. 

 Two New Genera of Acanthaceae. 3. New Astragali. 4. Miscel- 

 lanese. [Proceedings of the American Academy of Arts and Sci- 

 ences, Vol. 13. Issued April 5, 1878.] 8vo. pamphlet, pp. 361- 

 374. 



. Botanical Contributions. 1. Characters of some New 



Species of Compositae in the Mexican Collection made by C. C. 

 Parry and Edward Palmer, chiefly in the Province of San Luis 

 Potosi, in 1878. 2. Some New North American Genera, Species, 

 etc. [Proceedings of the American Academy of Arts and Sciences, 

 Vol. 15. Issued October 1, 1879.] 8vo. pamphlet, pp. 25-51. 



, and Sir J. D. Hooker, F. R. S. The Vegetation of the 



Rocky Mountain Region, and a comparison with that of other parts 

 of the world. Authors' Edition. [Bulletin of the Survey, Vol. 6, 

 No. 1. U. S. Department of the Interior.] Svo. pamphlet, pp. 

 77. Washington: 1881. 



. Biographical Notice of Charles Darwin. [Proceedings 



of the American Academy of Arts and Sciences, Vol. 17, May, 

 1882.] 8vo. pamphlet, pp. 11. 



. Contributions to North American Botany. 1 Studies 



of Asters and Solidago in the Older Herbaria. 2. Novitiaj Arizo- 

 nica;, etc. : Characters of the New Plants of certain Recent Collec- 

 tions, mainly in Arizona and adjacent Districts, etc. [Proceedings 

 of the American Academy of Arts and Sciences, Vol. 17. Issued 

 June 26, 1882.] 8vo. pamphlet, pp. 163-230. 



. Remarks concerning the Flora of North America. 



Read to the Botanists at the meeting of the American Association 

 for the Advancement of Science, at Montreal, August 25, 1882. 

 [American Journal of Science, Vol. 24, November, 1882.] Svo. 

 pamphlet, pp. 321-331. 



, and J. Hammond Trumbull. Review of De CandoUe's 



Origin of Cultivated Plants ; with Annotations upon certain Ameri- 

 can Species. Parts II and III. [American Journal of Science, 

 Vol. 25, May, 1883, and Vol. 26, August, 1883.] 8vo. pamphlet, 

 pp. 370-379, and 128-138. 



— . Contributions to North American Botany. 1. Ciiarac- 



ters of New Composita;, with Revisions of certain Genera, and 

 Critical Notes. 2. Miscellaneous Genera and Species. [Proceed- 

 ings of the American Academy of Arts and Sciences, Vol. 19. 

 Issued October 30, 1883.] Svo. pamphlet, pp. 96. 



. 1. A Revision of the North American Species of the 



Genus Oxytropis, DC. 2. Notes on some North American Species 

 of Saxifraga. [Proceedings of the American Academy of Arts and 

 Sciences, Vol. 20. Communicated May 14, 1884.] Svo. pamphlet, 

 pp. 12. 



. Characteristics of tlie North American Flora : An Ad- 

 dress to the Botanists of the British Association for the Advancement 



