888 THE AMERICAN NATURALIST. | (Vor. XXXIX. 
Sushitna and Kuskokwim Rivers, Alaska. 20th Ann. Rep. U. S. 
Geol. Surv., vol. 7, p. 77. 
KEARNEY, T. H 
The Line Austral Element in the Flora of the Southern Appala- 
chian Region. Science, n. s., vol. 12, p. 830. 
PPLE AN, W.A. 
The Fourth State Catalogue of Ohio Plants. Ohio State Univ. 
Bull., ser. 4, no. 10. 
KIMBALL, H. H 
:05. Evaporation Observations in the United States. U. 5. Weather 
Bur. Bull., no. 327. 
LIVINGSTON, B. E. 
03 e Distribution of the Upland Plant Societies of Kent Co., 
Michigan. Bot. Gaz., vol. 35, p. 36. 
MACOUN, J. i 
'83. Catalogue of Canadian Plants. Pts. 1 to 3. Geol. and Nat. Hist. 
Surv. Canada. 
Macoun, J. M. 
'95. Contributions from the Herbarium of the Geological Survey of 
Canada. Can. Rec. Sci., vol. 6, Apr. 
Mason, S.C. 
'92. Preliminary Report upon the Variety and Distribution of Kansas 
Sth Ann. Rep. Kans. State Bd. Agric. 
MENDENHALL, W. C. 
:02. Reconnaissance from Fort Hamlin to Kotzebue Sound, Alaska. 
Prof. Paper, U. S. Geol. Surv., no. 10, p. 58. 
MERRIAM, C.H. 
'91. Distribution of Life in North America, with Special Reference to 
the Mammalia. Smithson. Rep., 1891, p. 365. 
MORR, C. 
'97. Timber Pines of the Southern United States. Div. of Forestry, 
U. S. Dept. Agric., bull. 13. 
MonR, C. 
:01. Plant Life of Alabama. Geol. Surv. of Ala. 
PiNcHOT, G., AND AsHE, W. W. 
'97. Timber Trees and Forests of North Carolina. JV. C. Geol. Surv., 
bull. 6. 
PORTER, T. C. 
:03. Flora of Pennsylvania. Ginn & Co., Boston. 
RUSSELL, T. 
'88. Evaporation. Monthly Weather Review, Sept. 
RYDBERG, P. A. 
'96. Flora of the Black Hills of South Dakota. Contrib. U. S. Nat. 
Herb., vol. 3, no. 8. 
SARGENT, C. S 
’84. Forests of North America. roth Census of the U. S., vol. 9. 
