VI 
Johnson W. H., B.Sc. — O n the Action of Sulphuric and Hydrochloric 
Acids on Iron and Steel, p. 42. On the Influence of Acids on Iron 
and Steel, p. 74. 
Joule J. P., D.C.L., LL.D,, F.R.S., President. — On the increase in the 
number of cases of Hydrophobia, p. 41. On an Apparatus for pro- 
ducing a high degree of Rarefaction of Air, pp. 43, 55, 57. On a 
change in the position of the Freezing Point of a Thermometer, 
p. 73. 
Mackereth Thomas, F.R.A.S. — Results of Rain Guage Observations 
made at Eccles, near Manchester, during the year 1872, p. 140. 
Plant John, F.G,S. — Description of Minerals and Ores from Venezuela, 
p. 113. Note on a Fossil Spider in Ironstone of the Coal Measures, 
p. 146. 
Reynolds, Professor 0., M.A. — On the Electrical Properties of Clouds 
and the Phenomena of Thunderstorms, p. 34. On a large Meteor 
seen on February 3, 1873, at ten p.m., p. 48. 
Routledge R., B.Sc. — On the composition of Ammonium Amalgam, p. 1. 
Roberts William, M.D. — Experiments on the Question of Biogenesis, 
p. 52. 
Schunck Edward, Ph.D., F.R.S., V.P. — On Methyl-alizarine and 
Ethyl-alizarine, p, 86. 
Sidebotham Joseph, F.R.A.S. — On the Destruction of the Rarer Species 
of British Ferns, p. 69. Note on an observation of a Small Black 
Spot on the Sun’s disc, p. 105. Remarks on an Old Microscope, 
p. 117. 
Smith H. A., F.C.S. — On some points in the Chemistry of Acid Manufac- 
ture, p. 20. 
Smith Professor Hamilton G. — On the use of iron or bell metal Specula 
coated with Nickel for Reflecting Telescopes, p. 105 
Smith R. Angus, Pli.D., F.R.S., V.P. — On a remarkable Fog in Iceland, 
p. 11. On the Action of Town Atmospheres on Building Stones, 
p. 19. 
Spence James M. — On Collection of Natural History and other Objects 
from Venezuela, p. 112, 
Spence Peter, F.C.S.-— On an Experiment in Heating a Diamond, p. 103. 
