( 555 ) 



Geology. — "On (jcolocjical records on flw soufh-mcsi roast of Kevi- 

 Guinea'. By Prof. K. Martin. 



(Tliis comniuiiiccition will not be published in these Proceedirigs). 



Chemistry. — " Contrllmtion to the knoir/ech/e of the natural sulfo- 

 antiinonltes' I. Bj Prof. F. M. Jaegkr. (Communicated by Prof. 

 P. VAN Rombukgh). 



(This communication will not be published in tliese Pioceedings). 



Chemistry. — "Contrlhution to the knowkthje ofsulfo-antimoiiites' II. 

 By Prof. F. M. .Jaeger and Mr. H. S. van Klooster. (Commu- 

 nicated by Prof. P. van Romburgh). 



(This communication will not be published in these Proceedings). 



(December 28, 1911). 



