viii 
Vernon G-. V., F.R.A.S., F.M.S. — On tlie Mean Weekly Temperature at Old 
Tr afford, Manchester, for the 17 years 1850-66, p. 68. On the Rain- 
fall for 1866, at Old Trafford, Manchester, p. 70. 
Vize Rev. J. E. — Description of the Hairs of a Foreign Lepidopterous 
Caterpillar, p. 181. On Testacella, p. 192. 
Wardley Q-eorge. — On Streaks on Collodion Plates, p. 141. 
Watson J. — Further Remarks on the Plumules or Battledore Scales of some 
of the Lepidoptera, with Illustrations by Mr. Sidebotham, p. 183. 
Wilde H. — On Sieman’s and Wheatstone’s Magneto-electric Machines, 
p. 103. 
Meetings of the Physical and Mathematical Section. — Ordinary, pp. 13, 67, 
68, 94. 
Meetings of the Microscopical and Natural History Sections. — Annual, p. 
191. Ordinary, pp. 21, 85, 181, 182, 183, 192. 
Meetings of the Photographical Section. — Ordinary, pp. 7, 24, 57, 77, 114, 
141, 163. 
Report of the Council.— -April 30, 1867, p. 165. 
ERRATA. 
Page 134, line 22, for 6 and ^ in the equation, read tan 6 and 
tan Oj. 
Page 136, line 9, for generally read supposed to be. 
