STONE

or calcium carbonate, is} a Ra the most abundant of the rocks} against ompeose the crust of the earth./ War, a y limestone, so called, is a hard} Daring rock with a grey or bluish grey | comma It is slightly soluble in water|the m ng carbon di-oxide, When water/ Japane vontains calcium carbonate in| Mukde evaporates the latter is left behind, | comma s stalactites and stalagmites are} LIN} ly found in limestone districts; a fame caverns usually abound. Chalk / duced s tuary marble po e the same/ the se composition as limestone; in/ merit < scientists, they are known 4s/ way to 8. upon ti ORE, THOMAS, 5. 1460, d. 1524,/ the pl sted physician, who was for some | pioneer vate p — to Henry VIL, | science. one of the founders of the Royal} LINC »f Physicians. of gro ILN, the capital of Lincoln shire, | oxidise od on the river With am. It is an| of gum 1 agricultural centre, manu-/to agricultural implements, and added | i one of the largest horse-fairs in into a |: — Pct roo — the er agnificent towers an eauti- | pre ed | choir. Tho town res ee Od all erable importance under both the | in rari and Saxons; population about| upper s [s. 198]