Yll 
Yeenon Gf. V., F.R.A.S. — On the Mean Monthly Temperature at Old 
Trafford, Manchester* 1861 to 1868, and also the Mean for the 
Twenty Years 1849 to 1868, p. 46. On the Rainfall of 1869, at Old 
Trafford, Manchester, p. 123. 
Watson John. — Address to the Microscopical and Natural History Section, 
p. 9. 
Wilde H. — On the Suspension of a Ball by a Jet of Water, p. 133. 
Williams W. Caeleton. — On the Determination of Phosphoric Acid, 
p. 141. 
Williamson Professor W. C., F.R.S. — On a New Form of Calamitean 
Strobilus, p. 7. On the Structure of Calamites, p. 76. 
Meetings of the Physical and Mathematical Section. — Ordinary, 46, 123, 124. 
Meetings of the Microscopical and Natural History Section. — Annual, p. 189. 
Ordinary, 9, 34, 54, 61, 110, 121, 181. 
Report of the Council — April 19th, 1870, p. 169. 
