Democratic Sentinel, Volume 20, Number 27, Rensselaer, Jasper County, 10 July 1896 — POPULAR SCIENCE. [ARTICLE]

POPULAR SCIENCE.

The eyes of birds that fly by night are generally about double the sine of day birds. “AH birds court in the spring,” says Olive Thorne Miller, “although it has been discovered by recent Investigations that the majority of them keep the same mates for Hfe. Nevertheless, when that season comes around each year the male bird goes through the same demonstrations and makes every effort to charm his spouse anew." A Frenchman has invented a recording attachment for the piano, for the use of composers, by which each key, when struck, leaves a mark on a strip of slowly-moving paper. By means of this contrivance improvised music may be transcribed and fleeting Ideas caught that, perhaps, it would be Impossible for the composer to recall and commit to paper. Prof. Ira Remsen describes (ip go), ence) a curious case of the accumulation of ms,rsh gas under ice. A nupy skaters were on a large orttfHaal lake covered with Ice. in places white spots were noticed in the ice suggesting air bubbles. A hole was bored in the ice and a match applied. The titin jet of flame buret up and the gas was found to be marsh gas formed by the decomposition of organic matter at the bottom of the lake. Prof. Remsen suggests that Bbating ponds illuminated by natural gas are among the yisalbH ttfttf the future.