PARTS.] Mallet: On the mineral resources of Rdmri, Chedttha, ^r. 223 
The locality seemed an unlikely one for copper to occur in, but before my 
visit to the island, the Deputy Commissioner, Mr. Duke, made enquiries on the 
subject, with, however, a negative result. Subsequently I went to Round Island, 
and found the hilly ground there to consist, as was anticipated, of stratified 
rocks similar to those of Rtori and Cheduba, and therefore of presumably 
early tertiary age. The occurrence of copper in such rocks Avould be most 
unusual. No one that I questioned on the subject had ever heard of copper 
having been found in the island. 
Not long ago whilst arranging the series of Indian copper ores in the Geolo¬ 
gical Museum, I lighted on a tray containing a number of very irregularly shaped 
pellets from the size of a grain of shot to that of a large pea or more. They 
were composed of bronze-colored metal with a coating of red and black oxides 
and green carbonate of copper and with a few rolled grains of quartzose sand 
adhering to them. The accompanying label ran “ Copper ore from Flat Island^ 
off the south-east end of Ramri; pi-esented by Captain Williams.” On assay, 
the pellets were found to bo an alloy of copper and tin, one which has never yet 
been found native, but which, artificially manufactured, is used to a considerable 
extent amongst the Burmese. It is clear therefore, that the metal found by the 
Mug was not native copper but artificial bronze, which, judging from the condi¬ 
tion in which it wa.s unearthed, had probably lain buried for a very long period. 
ADDITIONS TO THE MUSEUM. 
(From January to March 1878.) 
Donors. 
Burmese petroleum, and series of liquid and solid products manufactured there¬ 
from. 
The Rangoon Oil Company. 
Specimens of zincblende from near Giridi; argentiferous galena from Phaga 
(seven miles south-east of Danda, Bhagalpur District) ; and gray copper 
ore with barytes from Jabalpur District. 
W. G. Olpheets, Esq. 
Copper pyrites in Kaladgi limestone (Madras Presidency). 
Dr. Thorpe. 
Two series of minerals (by exchange). 
Mineral Department, British Museum. 
SERIES I. 
Aikinite in quartz, Beresowsk, Urals, Russia. 
Anorthite, with biotite and pyroxene, Monte Somma, Vesuvius. 
„ var. Amphodelite, with pyroxene and copper pyrites, Tunaberg, 
Sweden. 
■ In the original papers in the Asiatic Journal there is a confusion between Round and Flat 
Islands —Vide p. 904. 
