352 HARPER 



Gattinger, A. The flora of Tennessee (ed. 2) and a philosophy of botany. 

 296 pp. Nashville, 1901. (Published by the state.) 

 The correlations of vegetation with geology, in the introductory pages, 

 are excellent, except for the coastal plain (West Tennessee), which 

 the author had not often visited. 



Gray, Asa. Analogy between the flora of Japan and that of the United 

 States. Am. Jour. Sci. II. 2:135-136. 1846. 



Gray, Asa. Statistics of the flora of the Northern United States. Am. 

 Jour. Sci. II. 22:204-232. 1856; 23:62-84, 369-403. 1857. 

 A very interesting paper. The author recognizes five natural divisions 

 of the region (pp. 394-395), and discusses their flora, but does not 

 define them in terms of any environmental factors. 



Gray, Asa. Diagnostic characters of new species of phasnogamous 

 plants, collected in Japan by Charles Wright. . . . With observa- 

 tions upon the relations of the Japanese flora to that of North America, 

 and of other parts of the North Temperate zone. Mem. Am. Acad. 

 6:377-449- l8 59- 



Gray, Asa. Forest geography and archaeology. Am. Jour. Sci. III. 

 16: 85-94, 183-196. 1878. 



Gray, Asa. The pertinacity and predominance of weeds. Am. Jour. 

 Sci. III. 18:161-167. 1879. 



Gray, Asa. Characteristics of the North American flora. Am. Jour. 

 Sci. III. 28: 323—340. 1884. 

 This may perhaps be considered the best of Dr. Gray's papers, from a 

 phytogeographical standpoint. It has never since been surpassed 

 by anything of similar scope. 



Grisebach, A. H. R. Die Vegetation der Erde. 2 vols. Leipsic, 1872. 

 Haddon, Alfred C. The saving of vanishing data. Pop. Sci. Monthly 



62: 222-229. J an - I 9°3- 

 Addressed primarily to zoologists and anthropologists, but the general 



principles involved are equally important to phytogeographers. 



Harshberger, J. W. An ecologic study of the flora of mountainous North 

 Carolina. Bot. Gaz. 36: 241-258, 368-383. Oct. 1903. 

 An excellent discussion of the relation between physiographic history 

 and phytogeography in a region whose flora is the most ancient of 

 any in Eastern North America. 



Harshberger, J. W. A phyto-geographic sketch of extreme southeastern 



Pennsylvania. Bull. Torrey Club 31: 125-159. /. 1-4. March, 1904. 



Of somewhat similar scope to the preceding paper, and more free from 



some of its mechanical defects, such as lack of italics and 



illustrations. 



