The Field Of Science

According to Professor Langley tho inherent temperaturo of tho moon is below thiit of nielting ice. Tui! (.'xatl meaningof "horse-powor"' is theraising of 33,000 pounds onefoot high ia ono minuto of time. Deokiuite. or vandate of lead and z'nc, has boon digcovered in Montana, Oro of this nature is worth $10,000 a pound. Ha;l wo a railway to tho moon it woukl taku but abouta year to reach it, traveling at the rato of twenty-suven miles ;va bour. Astronoraers promise that a bright coniot will be visible just before sunrise dui'ing the latter part of May. It is tho coiuut "1886," discovered lately by Professor Barnard. Professor C. Pritchard is about to pnblish a photouietric detormination of the magnitude of all stars visible to the naked cyo from the pole to 10 degrees south of tho equator. The popular Science News asserts that the average longth of hfe is constantly increasingandthe time may yet come when persons 100 ycars of age wül excito no moiv curiosity thau one of 80 years at the present time. Professor Young, in a locturc in Boston, remarked that thcre is nopatch of the nioon's surf ace of half a mile sqnaro that is not accur;Uely mapped, while thcre are immense tracts in Central África and the northerii part of tbis hemisphere which have nevor been gurv8yed.