588 Index. 
Wigham (J. R.). Noteon Improvements ; Wright (W.B.). Some Results of Glacial 
in the Means of causing Occultations or Drainage round Montpelier Hill, County 
Flashesin Buoy Lamps and Beacons in Dublin, 575. 
which the Lights Burn Continuously 
for a month or a longer time, 76. 
Wilson (W. E.). The Nebula surround- 
ing Nova Persei, 556. 
X Rays, Method of comparing the relative 
Opacities of Organic Substances to the 
(HENLEY), 31. 
END OF VOL. IX. 
