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Clyde, G. D. (2314) 



A NEW SPRING BALANCE FOR MEASURING WATER CONTENT OF SNOW. Science 



(n. s.) 73: 189-190, illus. 1931. 

 Connell, A. B. (2315) 



MEASURING SOIL TEMPERATURE BY STANDARD THERMOMETER SUSPENDED IN 



iron pipe. Ecology 4: 313-316, illus. 1923. 

 Cooper, W. S. (2316) 



AN APPARATUS FOR PHOTOGRAPHIC RECORDING OF QUADRATS. Joiir. Ecology 



12: 317-320, illus. 1924. 

 Culley, M. J., Campbell, R. S., and Canfield, R. H. (2317) 



VALUES AND LIMITATIONS OF CLIPPED QUADRATS. Ecology 14: 35-39. 1933. 



Dahlberg, H. W., and Brown, R. J. (2318) 



A STUDY OF THE NEUBAUER AND WINOGRADSKY (AZOTOBACTER) METHODS AS 

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Davis, R. O. E., and Bryan, H. (2319) 



THE ELECTRICAL BRIDGE FOR THE DETERMINATION OF SOLUBLE SALTS IN SOILS. 



U. S. Bur. Soils Bull. 61, 36 pp., illus. 1910. 

 Douglass, A. E. (2320) 



A METHOD OF ESTIMATING RAINFALL BY THE GROWTH OF TREES. Bull. Amer. 



Geogr. Soc. 46: 321-335. Also in Huntington, E., The Climatic Factor 

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 1914. 



Farrow, E. P. (2321) 



ON A PHOTOGRAPHIC METHOD OF RECORDING DEVELOPMENTAL PHASES OF 



vegetation. Jour. Ecology 3: 121-124. 1915. 



. (2322- 



notes on photographing vegetation. Jour. Ecology 13: 329-336. 1925. 



Fisher, R. A., and Wishart, J. (2323- 



THE ARRANGEMENT OF FIELD EXPERIMENTS AND THE STATISTICAL REDUCTION 



of the results. Imp. Bur. Soil Sci. Tech. Commun. 10, 24 pp. 1930. 



This foreign reference is included because of the applicability of the field 

 technique in range work. 



Fletcher, C. C, and Bryan, H. (2324) 



MODIFICATION OF THE METHOD OF MECHANICAL SOIL ANALYSIS. U. S. Bur. 



Soils Bull. 84, 16 pp., illus. 1912. 



Forsling, C. L. (2325) 



some methods used in grazing studies. Idaho Forester 7: 17-20, 45-56. 

 1925. 



Fraps, G. S., and Fudge, J. F. (2326) 



rapid chemical methods for the estimation OF the capacity of the soil 

 to supply phosphoric acid to plants. Jour. Amer. Soc. Agron. 25: 

 217-230. 1933. 



Fuller, G. D., and Bakke, A. L. (2327) 



raunkiaer's "life forms", "leaf-size classes", and statistical methods. 

 Plant World 21: 25-37, 57-63. 1918. 

 Geib, H. V. (2328) 



A NEW TYPE OF INSTALLATION FOR MEASURING SOIL AND WATER LOSSES FROM 



control plats. Jour. Amer. Soc. Agron. 25: 429-440, illus. 1933. 

 Gemmer, E. W., Jr. (2329) 



A METHOD OF RECORDING MAXIMUM AND MINIMUM TEMPERATURE OF FOREST 



soils. Science (n. s.) 70: 505-506, illus. 1929. 



Gleason, H. A. (2330) 



some applications of the quadrat method. Bull. Torrey Bet. Club 47: 

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— (2331) 



species and area. Ecology 6: 66-74. 1925. 

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