Vll 
Sidebotham Joseph, F.R.A.S. — On the Variations of Abraxas G-rossulariata, 
p. 25. On Carex flava, p. 104. On the Cultivation of Madder in 
Derbyshire, p. 118. On the Microscopical Examination of Dust 
blown into a Railway Carriage near Birmingham, p. 205. 
Simpson Henry, M.D — Observations on the Bilharzia hsematobia (Cobbold), 
Distomum hcematobium (Bilharz), p. 212. 
Smith H. A. — Arsenic in Pyrites and Various Products, p. 162. 
Smith Watson, F.C.S. — On Isodinaplithyl, p. 47. 
Spence Peter, F.C.S. — On the Effect of Cold on the Strength of Iron, p. 94. 
Further Experiments on the Effects of Cold upon Cast Iron, p. 110. 
Stewart Professor Baieottr, F.R.S. — On Sun-spot Curves, p. 7. On the 
Temperature Equilibrium of an Enclosure containing a Body in 
Visible Motion, p. 32. 
Vernon G-. V., F.R.A.S., F.M.S. — On a Meteor observed August 15th, 1870, 
p. 27. On the Rainfall at Old Trafford, Manchester, during the year 
1870, p. 197. On the Rainfall at Old Trafford, Manchester, and 
Comparison with the Average of Twenty Years and Seventy-seven 
Years, p. 199. 
Wiekinson T. T., F.R.A.S. — On the Aurora Borealis of October 25th, 1870, 
p. 15. On the Drift Deposits near Burnley, p. 76. 
Williamson Professor W. C., F.R.S. — On the Organisation of an Unde- 
scribed Verticillate Strobilus from the Lower Coal Measures of Lanca- 
shire, p. 105. On the Structure of some Specimens of Stigmaria, 
p. 116. 
Meetings of the Physical and Mathematical Section. — Annual, p. 188. Ordi- 
nary, pp. 27, 187. 
Meetings of the Microscopical and Natural History Section. — Annual, p, 212. 
Ordinary, pp. 25, 35, 101, 114, 165, 205. 
Report of the Council. — April 18th, 1871, p. 171. 
