104. MM. E. Wadsworth—Rocks of Newfoundland. 
cent to ge eruptive masses.. The deposits thus occur- 
g are irregular segregations or impregnations of varying 
bulk, not promise in any one locality long con- 
the mines as soon as the chief portion of the ore is extracted. 
The Betts Cove and Little Bay Mines at the time of my visit 
presented to me the appearance of having been well worked 
One prevalent error regarding the rocks of this country 
ought to be corrected, i. e. the belief that the ores are associate 
with serpentine. No serpentine was seen by me at any of the 
points touched between T'willingate and Betts Cove except one 
small bowlder at the latter place. I am informed it exists in 
that vicinity, and Mr. Murray assured me it occurs at Tilt Cove. 
The ores, so far as seen, occurred in diabase and schists; hence 
the statements, so industriously circulated in almost every arti- 
cle relating to the Newfoundland copper deposits, regarding 
the relation of the ores to serpentine are entirely incorrect in 
the districts seen by me. . 
In closing, I desire to express my warm thanks to the veteran 
director of the Geological Survey of Newfoundland, Alexander 
Murray, C.M.G, for his many kind favors during my stay in 
St. John’s, and.my regrets that ill health has compelled him to 
resign the post he has so long held. 
Cambridge, Mass., March 22d, 1884, 
