"Heavy spar" Quotes from Famous Books
 ... Ba, atomic weight 137.37 [O16]), one of the metallic chemical elements included in the group of the alkaline earths. It takes its name from the Greek [Greek: barus] (heavy) on account of its presence in barytes or heavy spar which was first investigated in 1602 by V. Casciorolus, a shoemaker of Bologna, who found that after ignition with combustible substances it became phosphorescent, and on this account it was frequently called Bolognian phosphorus. In 1774 K. W. Scheele, in examining ...
— Encyclopaedia Britannica, 11th Edition, Volume 3, Part 1, Slice 3 - "Banks" to "Bassoon" • Various |
