LIST OF TABLES xxxi 



PAG] 



83. Analyses of feebly hydraulic limes 188 



84. Tensile strength of feebly hydraulic limes 188 



85. Compressive strength of feebly hydraulic limes 190 



86. Tensile strength of selenitic limes 191 



87. Compressive strength of selenitic limes 192 



88. Analyses of natural-cement rock, Utica, 111 204 



89. " " " " ", Louisville district '. '. ! '. '. 204 



90. " " " " ", Fort Scott, Kansas 205 



91. " " " " ", Cumberland-Hancock, Md 206 



92. " " " " " ,Mankato, Minn 206 



93. " " " " ", Rosendale district, N. Y 208 



94. " " " " " , Schoharie Co., N. Y 208 



95. " " " " " , Central N. Y 209 



96. " " " " " , Akron-Buffalo, N. Y 210 



97. " " " " ", North Dakota 211 



98. " " " " " ,0hio 211 



99. " " " " , Lehigh district, Pa 212 



100. " " " " ", Virginia 212 



101. " " " " ", Milwaukee district, Wis 21S 



102. " " " , England 217 



103. Fuel consumption in American natural-cement plants 234 



104. Power required in grinding natural cement 246 



105. Fineness required by various specifications 247 



106. " of three brands natural cement 247 



107. Estimate of cost of natural-cement manufacture 249 



108. Daily cost report of natural-cement plant 250 



109. Analyses of natural cements, Ga 253 



110. " " " " , Utica, 111 253 



111. " " " " , Louisville district 253 



112. " " " " , Ft. Scott, Kans 254 



113. " " " " , Potomac district, Md 255* 



114. " " " " , Minnesota 255 



115. " " " " , Rosendale district, N. Y 256 



116. " " " " , Central N. Y 258 



117. " " " " i Akron-Buffalo district, N. Y 258 



118. " " " , North Dakota 259^ 



119. " " " " , Lehigh district, Pa 259 



120. " " " " , Shepherdst'n-Antietam district, W. Va.-Md . 260 



121. " " " " , Milwaukee district, Wis 260 



122. " " natural Portland cements, Belgium 261 



123. " " " cements, England 261 



124. " " " " , France 261 



125. " " " " , Germany and Austria 262 



126. Specific gravity of American natural cements 263 



127. Effect of aeration on setting time of natural cement. . . 264 



128. " " plaster " " " " " " 264 



129. " " " " tensile strength of natural cement 265 



130. " " sand " " " " " " . 273 



