Cæsar's Bridge

Pile or trestle-bridge built by Cæsar 55 Cro Section at Pier. IMG:content-0671.png:[blocks in formation] Kirchhoff in 1860 by spectrum analysis. It was isolated 1882. It is a soft, white metal, Mpt. 26.5° C., Sp. gr. 1.88, and ignites on water or in the air. When an electric current is allowed to act upon the fused cyanides of cæsium and barium, aluminium poles, cæsium is obtained. The compounds of cæsium are simi- lar to those of pota ium and rubidium. The spectrum of cæsium shows two distinct blue lines; hence its name. It occurs in POL- LUCITE (q. v.), in Lepidolite and some salt springs. IMG:content-0672.png:[graphic] IMG:content-0673.png:[graphic] IMG:content-0674.jpg:[blocks in formation] son is hollow, and into it compre ed air is forced so as to expel the water and permit workmen to excavate the earth. Acce to the modern scouring- IMG:content-0675.jpg:[graphic] Cai on, Bridge of Kehl on the Rhine. tions ab. 100 ft. deep have been sunk by this method. Cai on Disease. Disease peculiar to per- sons, such as divers, who are exposed to ex- ce ive pre ure of air; characterized by severe pains in almost any portion of the body, lo of feeling or paralysis in the legs, and reten- IMG:content-0676.png:[graphic] of Caius College, Cambridge, 1557, Calathi form. Bowl-shaped corollas of certain plants. Calatrava, ORDER OF. Founded 1158 by Sancho III. of obtained by electrolysis of the chloride, or by heating sodium with calcium iodide in a closed ve el. It is a yellow metal, tenacious and malleable. It is rapidly oxidized in moist air, and decomposes water with violence.