Show A white cement needed A much felt desideratum at p present re rit is a strong white whito cement with which h to make artificial stone that shall bo be of more pleasing color than those male made with dark gray portland cement or the still darker brown ito cement the native carbonate of 0 inagene magnesia ma or magnesi telf if originally of a light color cat can be at a low heat beat I 1 is stronger than the best portland but the expense is considerable sid hid erable quite recently successful attempts have been made in germany to ma make ice an artif artificial leial white cement of the same character C fracter as the portland land by grind ing together three parts of chalk and one of kaolin burning at a red heat beat and grinding again the cement made by this process hitherto has shown a tensile strength only about one halt half as great aa as that 0 of good portland cement but it has the hydraulic quality and other characteristics character utica ot of the latter and what Is now wanted Is that the manu manufacture facture bo be so improved as to increase the tensile strength to the point required for making artificial art stone it Is thought that if a white cement can be found for a matrix it will be easy to obtain agg aggregates of light color by utilizing white sand band marble dust white tale anil and so on suitable sul table for making a concrete adapted to take the place ot of marble american architect I 1 I 1 il L ak 4 1 kl 11 iti 1 W M |