THE EXPECTED RETURN OF HALLEY'S COMET 557 



[Reprinted from the JOURNAL OF THE BRITISH ASTRONOMICAL 



Association, Vol. XIX. No. 2, pp. 99-100.] 



Ephemeris of H alley's Comet in 1910, by Dr. Smart. 



It is for Greenwich midnight. A is the distance from the 

 Earth in astronomical units. 



