TABLE OF CONTENTS. Vll 



Page 



Alford C. J., Esq. On Auriferous Hocks from Mashonaland .... 8 



Edwards, D. T., Esq. Boring on the Booysen Estate (Witwaters- 



rand) . . . . , 5 



Johnston-Lavis, Prof. H. J. Enclosures of Quartz in Lava of 

 Stromboli, etc., and the Changes in Composition produced by 



them 2 



Lydekker, B.., Esq. On Argentine Fossil Vertebrates 146 



Monckton, H. W., Esq. On a Variety of Ammonites (Stephanoceras) 



subarmatus, Young, from the Upper Lias of Whitby 4. 



Parkinson, James, Esq. Leigh Creek Jurassic Coal-Measures of 



South Australia 6 



. Physical and Chemical Geology of the Interior of Australia 7 



Sawyer, A. E,., Esq. On Rock-specimens from Mashonaland ". . . . 144 



