VI 



Johnson W. H., B.Sc. — On 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.K.S., President. — On the increase in the 

 number of cases of Hydrophobia, p. 41. On an Apparatus for pro- 

 ducing a high degree of Earef action of Air, pp. 43, 55, 57. On a 

 change in the position of the Freezing Point of a Thermometer, 

 p. 73. 



Mackereth Thomas, F,K.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 O., 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. — Ex^jeriments 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, Ph.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 

 SpBnce Peter, F.CS.— On an Experiment in Heating a Diamond, p. 103. 



