HALLEY'S comet was on its present visit first discovered at Heidelberg, September 12, 1909, between the orbits of Mars and Jupiter. It crossed the track of Mars February 4. It entered the lines of the earth's orbit March 12. It will be nearest the sun April 20; and to the earth May 19, at two o'clock in the morning. Camille Flammarion says:
"We should not expect a cometary spectacle of the first class before the days which will follow its passage before the sun, that is to say, before May 21, when it will doubtless show itself in flamboyant guise in the penumbra of the twilight. Having again become an evening star, it will doubtless be very