Scientific.

Waikato Times, Volume XXVI, Issue 2161, 15 May 1886, Page 2 (Supplement)

Scientific.

POPULAR WITH INVENTORS. — In January last there were 137,223 miles of telephone wire iv the United States, and there were 518J persons furnished with employireat by the exchanges. More different patents have been issued on the telephone than in any other single line of invention in America, the total number for the last ten years being 1521. GLASS FtOORIJfG. The substitution of glass flooring for boards continues to increase iv Paris, this being especially the case in those business structures in whicii the cellars are u«cd as offices. At the bank of the Credit Lyonnais, the whole of the ground in front is paved with large squares of roughened glass embedded in a strong iron frame, and in the cellars beneath there is sufficient light, even on dull days, to enable clerk!) to work without pis. The large central hall at the offices of the Comptoir d'Escompta has also been provided with this kind of flooring, and although its prime cost is considerably greater than that of boards, glass U in the long run far cheape-, owing to its almost unlimited durability.