BROWN Charles B. and SAWKINS J.G. - Reports on the Physical, Descriptive, and Economic Geology of British Guiana Printed for Her Majesty's Stationery Office and sold by Longmans, Green, & Co. and Edward Stanford (1875) iv + 297pp + folding map and large folding map in rear pocket. 1st ed., clean in worn original cloth. Former owner name, G.R. Sandbach, on inner cover.