Rocks and Minerals of British Guiana. 



LOCALITY. 



Barama river. 



., Cariacu. 



Demerara river. 

 Carabung river. 

 Cuyuni river. 



Between Surama and Annai. 

 Cuyuni river. 

 Rupununi river. 

 New river, Corentyne. 

 Above King Wm. IV. fall, 



Essequebo river. 

 Curiebrong river. 

 Surama savannah. 

 Between Surama and Annai. 

 Below King Wm. IV. cataract, 



Essequebo river. 

 Anourime inlet, Rupununi 



river. 



ore) ... ... Daruwow, Upper Rupununi 



savannah. 





