PROCEEDINGS 



OF THE 



GEOLOGICAL SOCIETY OF LONDON 



SESSION 1882-83. 



November 1, 1882. 



J. W. Httlke, Esq., E.R.S., President, in the Chair. 



Prof. Louis Lartet, of Toulouse, was elected a Foreign Corre- 

 spondent of the Society. 



The List of Donations to the Library was read. 



Specimens of Rocks from Costa Rica (illustrating his paper read 

 on the 24th May, 1882) were presented to the Museum by G. Att- 

 wood, Esq., E.G.S. 



The following communications were read : — 



1. " The Hornblendic and other Schists of the Lizard District, 

 with some Additional Notes on the Serpentine." By Prof. T. G. 

 Bonney, M.A., E.R.S., Sec. G.S. 



2. " Notes on some Upper Jurassic Astrorhizidae and Lituolidae." 

 By Dr. Rudolf Hausler, E.G.S. 



The following specimens were exhibited : — 



Rocks and Rock-sections, exhibited by Prof. T. G. Bonney in 

 illustration of his paper. 



Specimens exhibited by Dr. Hausler in illustration of his paper. 



vol. xxxix. 



