33 2 ANIMAL COMMUNITIES 



118. Briggs, L. J., and Shantz, H. L. The Wilting Coefficients for Different 

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119. Fuller, G. D. Soil Moisture in the Cottonwood Dune Association of 

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1190. McNutt, W., and Fuller, G. D. The Range of Evaporation and Soil 

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120. Cowles, H. C. The Causes of Vegetational Cycles. Bot. Gaz., XLI, 

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121. Schreiner, O., and Reed, H. S. Some Factors Influencing Soil Fertility. 

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122. Transeau, E. N. The Bogs and Bog Flora of the Huron River Valley. 

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123. Congdon, E. D. Recent Studies upon the Locomotor Responses of 

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124. Zon, R., and Graves, H. S. Light in Relation to Tree Growth. U.S. 

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125. Hann, J. Hand Book of Climatology. Part I. (Tr. by R. de C. 

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126. Cohnheim, O. Physiologic des Alpinismus II. Ergebnisse der Physi- 

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127. Huntingdon, E. The Effect of Barometric Variation upon Mental 

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128. Walker, A. C. Atmospheric Moisture as a Factor in Distribution. S.E. 

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129. Yapp, R. H. Stratification of the Vegetation of a Marsh and Its Rela- 

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130. Livingston, B. E. The Relation of Desert Plants to Soil Moisture and 

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