704 INDEX. 



Limestones, used for natural cement, 200-222 



, used for Portland cement, 307-347 



, varieties of, 89 



, water contained in, 378 



see also Chalk, Marl. 

 Lindhard kominuter, 243, 246, 448-452 

 Linings for rotary kilns, 490-492 



tube mills, 459 



Mack's cement, 78 



Magnesia, analyses of, 155, 158 



, carbonate of, see Magnesite. 

 , chemical formula of, 97, 148 

 , preparation of, 148-159 

 , in limestones, 90, 157 

 , in limes, 115, 118-119 

 , in natural cements, 197, 200 

 , in Portland cements, 298, 386, 631 

 Magnesia bricks, analyses, 161 



, manufacture, 160-161 

 , properties, 161-162 



Magnesian limestones, see Limestone, Magnesian, 

 Magnesite, analyses of, 152-153 

 , burning of, 154-155 

 , composition of, 148-149 

 , distribution of, 149-152 

 , imports of, 153 

 , origin of, 149 

 , production of, 153 



Magnesium chloride, as source of magnesia, 158-159 

 use in Sorel stone, etc., 162-167 

 Mahon, R. W., on slags suitable for slag cement, 642 

 Mannheim system of calcining plaster, 49-50 

 Marble, 89 

 Marl, analyses of, 342 



, composition of, 341-343 

 , definition of, 334 

 , distribution of, 339-340 



, dredging methods and costs, 375-377, 379-381 

 , drying, 378 



, examination of deposits, 343-347 

 , greensand, 335 

 , origin of, 335-339 

 , physical properties, 340-341 

 , pumping, 376-377 

 , water contained in, 343, 378 

 , weight, 340-341 



Marston, Prof., on tests of plasters, 00-64 

 McEntee cracker, 239 



