561 



right and applied to right image ; slight polarization, outer or right 

 image being brighter. 



May 5th, 1859, 8 P.M. Prismatic parhelion with part of halo on 

 each side of sun distant about 22 30'. Polariscope applied to left 

 image, held in a parallel plane, eye-mark to left ; medium polariza- 

 tion, left or outer image brighter. Instrument held in same plane 

 and applied to right image, eye-mark to right ; similar medium pola- 

 rization, outer or right image brighter. 



May 6th, 1859, 6 '50 P.M. Prismatic parhelion and part of halo 

 on each side of sun distant 22 20'. Polariscope applied to left 

 image and held in a parallel plane, eye-mark to left ; medium po- 

 larization, outer or left image being brighter. Instrument held in 

 same plane, eye-mark to right, and applied to the right parhelion ; 

 similar medium polarization, right or outer image being brighter. 



May 20th, 1859, 8 P.M. Prismatic arc of halo to left of sun 

 distant about 23. Polariscope applied, held in the parallel plane, 

 eye-mark to left ; slight polarization, the outer or left image being 

 brighter. 



August 7th, 1859, 7*30 P.M. Prismatic parhelion to right of sun, 

 distant about 22 30'. Polariscope applied, held in the plane of a 

 line joining sun and parhelion ; a little more polarization than in last 

 observation. Arrow and brighter image both to the right. 



XIV. " Notice of < The Royal Charter Storm ' in October 1859." 

 By Rear- Admiral ROBERT FiTzRoY, F.R.S. Received 

 June 21, 1860. 



(Abstract.) 



The author commenced with some remarks on the recent progress 

 of meteorology, on its advances towards precision and consistency as 

 a science, and the comparative certainty and confidence \\ith which 

 it may now be relied on in its practical applications. He adverted 

 also to the measures now systematically adopted by the Meteorolo- 

 gical Department of the Board of Trade and by the Admiralty for 

 promoting simultaneous meteorological observations at various places, 

 and for obtaining accurate registration of atmospherical conditions at 

 sea and on land in many parts of the world ; and drew attention to 



