224: ANNALS NEW YORK ACADEMY OF SCIENCES 



104. VAN HISE, C. R. : A Treatise on Metamorphism. U. S. Geol. Surv., Mono- 



graph 47. 1904. 



105. WALLING, W. A. B. : Some Notes on the Setting of Cement. Chem. News, 



104, 54. 1911. 



106. WESTON, R. S. : Effect of Sewage on Concrete. (Letter.) Eng. Record, 



61, 714. 1909. 



107. WHITE, A. H. : Disintegration of Fresh Cement Floor Surfaces by the 



Action of Smoke Gases at Low Temperatures. Pr. Am. Soc. Test. Ma- 

 terials, 9, 530. 1909. 



108. WHITE, A. H. : Destruction of Cement Mortars and Concrete through Ex- 



pansion and Contraction. Proc. Am. Soc. Test. Mat, 11, 531. 1911. 



109. WIG, R. J. : The Effect of High Pressure Steam on the Crushing Strength 



of Portland Cement Mortar and Concrete. Proc. Am. Soc. Test. Mat., 

 11, 580. 1911. 



110. WILLIAMS, I. A. : Influence of Fine Grinding upon the Physical Properties 



of Portland Cement. Trans. Am. Cer. Soc., 10, 244. 1908. 



111. WITHEY, M. O. : A Survey of the Concrete Aggregates of Wisconsin. Con- 



crete, 12, 55. 1912. 



112. WORM SEE, D. : Changes in the Strength of Portland Cement. Cement Age r 



9, 254. 1907. 



