CONTENTS. 



ARTICLE PACK 



I. — The Action of Sulphuric Acid on Diallyl. By Mr. William 



Robert Jekyll i 



II.— On Isodinaphthyle. By Watson Smith, F.C.S 13 



III. — On the Organization of Volkmannia Dawsoni, an undescribed 

 Verticillate Strobilus from the Lower Coal Measui*es of 

 Lancashire. By Professor W. C. Williamson, F.R.S. 28 

 IV. — Notes on the Botany of Mere, Cheshire. By George E. 



Hunt, Esq 41 



V. — The Tails of Comets, the Solar Corona, and the Aurora, con- 

 sidered as Electric Phenomena. — Part I. By Professor 



Osborne Reynolds, M. A 44 



VI. — The Tails of Comets, the Solar Corona, and the Aurora, con- 

 sidered as Electric Phenomena. — Part II. By Professor 



Osborne Reynolds, M.A 53 



VII. — On the Rainfall at Old Trafford, and Comparison with the 

 Averages of Twenty Years and Seventy-seven Years. By 



G. V. Vernon, F.R.A.S., F.M.S 56 



VIII. — Contributions to our Knowledge of the Antimony Oxychlo- 

 rides. By William Carleton Williams, Dal ton Scholar 



in the Laboratory of Owen's College, Manchester 61 



IX. — Arsenic in Pyrites and Various Products. By H. A. Smith, 



Esq 68 



X. — A Study of certain Tungsten Compounds. By Professor H. 



E.Roscoe, B.A.,Ph.D., F.R.S 76 



XI. — Notices of several recently discovered and undescribed 



British Mosses. By George E. Hunt, Esq 99 



XII. — Experiments on the Oxidation of Iron. By Professor F. 



Crace-Calvert, Ph.D., F.R.S 104 



XIII. — On the Boiling-points of the Normal Paraffins and some of 



their Derivatives. By Carl Schorlemmer, F.R.S 115 



XIV. — On the Inverse, or Inductive, Logical Problem. By Profes- 

 sor W. Stanley Jevons, M.A., F.R.S 119 



