CONTENTS. VU 



Mullen, John. — Presentation of i8 rock-sections to the Natural 



History Section ... ... ... ... ... ... ... xxi 



Reynolds, Osborne, M. A., F.R.S. — Discussion on the aurora borealis 



of September 9, 1898 ... ... ... ... ... ... iv 



Rogers, Thomas. — Exhibit of specimens of Helichrvsum paronychioides 



from the Orange Free State ... ... ... ... ... xxiv 



Exhibit of a collection of plants from Ireland ... ... ... xxiv 



Exhibit of leaves of a North American plant, Gelax, and the stem 



of an Aloe with a large fungus ... ... ... ... ... xxiv 



Russell, J. Lawson, M.D. — Vestiges of Primitive Man found near 



Todmorden ... ... ... ... ... ... ... vi 



ScHiLL, C. H. — Exhibit of collections of Australian Cossida and 



HepialidcE ... ... ... ... ... ... ... ... xxiii 



Schuster, Arthur, Ph.D., F.R.S. — Exhibit of lantern slides illus- 

 trating researches on the velocity of molecules in the electric 



spark XX 



Stanley, W. — Exhibit of a new form of microtome ... ... ... xxi 



Stirrup, Mark, F.G.S. — Exhibit of fossil corals from Torquay ... xxi 

 Stromeyer, C. E., M.Inst.C.E. — On some difficulties in applying 



Fourier's methods to the consideration of the conduction of 



heat in boiler plates ... ... ... ... ... ... iv 



Exhibit of photographs illustrating the damage effected l)y the 



boiler explosion at Monton ... ... ... ... ... viii 



Sykes, Mark, F.R.M.S. — Exhibit of specimens of the genus Phryniis xxiii 



Tristram, J. F., M. A. On a solar phenomenon observed on September 



28, 1898 i 



Watson, John. Exhibit of living embryos of the Mexican Axolotl, 



Menobranchus pisciforrnis Harlan ... ... ... ... xxiv 



General Meetings ... ... ... ... ... ... iii, v, xiv, xx, xxvii 



Special Meeting for the delivery of the Wilde Lecture ... ... ... xviii 



Annual General Meeting ... ... ... ... ... ... ... xxvii 



Meetings of the Microscopical and Natural History Section : — 



Ordinary.. ... ... ... ... ... .. ... xxi-xxiv 



Annual ... ... ... ... .. ... ... ... ... xxv 



Report of Council, April, 1899, with Obituary Notices of Ferdinand 

 Julius Cohn, Sophus Lie, Lord Playfair, Osbert Salvin, Gustav 

 Heinrich Wiedemann, Henry Mere Ormerod, Richard Marsden 

 Pankhurst, James Rhodes, and John Wright ... ... ... xxix 



Treasurer's Accounts... ... ... ... ... ... ... ... xlii 



List of the Council and Members of the Society ... ... ... ...(i — xv) 



List of the Awards of the Wilde and Dalton Medals and of the Premium (xvi) 



