288 PROCEEDINGS OF THE CALIFORNIA 



This agrees pretty well with the results of the analysis, although it is desir- 

 able that more specimens should be examined, and if possible from other local- 

 ities. I am informed by Mr. Ashburner that he has noticed this mineral at 

 more than one mine in Lower California. 



At all events, I would suggest for the mineral in question the name of 

 Cuproscheelite, as convenient for designating it, and as expressing its chemical 

 and mineralogical relations, whether it be considered as a mineral substance 

 having a distinct and fixed composition, or only as a variety of Scheelite, con- 

 taining a large but uncertain amount of oxide of copper. 



Dr. Ayres called attention to the fact that a carcase of a Black 

 fish could be procured at the Potrero, at a small expense, and a 

 subscription was raised for its purchase. 



Professor Whitney exhibited a branch of Sequoia sempervirens, 

 taken from a small tree growing near San Rafael, of which the 

 leaves are entirely white. The tree presents a very singular 

 appearance, surrounded as it is by other redwoods of the usual 

 color. The fact was elicited that similar blanched redwoods exist 

 in other localities in the Coast Ranges ; but no explanation or 

 theory was offered to account for this curious, abnormal blanching 

 of the foliage of a single species — a similar condition of things not 

 having been noticed, so far as known, in any other species than the 

 redwood. 



Regular Meeting, August 20th, 1866. 

 Dr. Kellosff in the chair. 



'Oft 



Ten members present. 



Messrs. W. H. Knight and A. Godefroy were elected Resident 

 Members. 



Donations to the Library : Bibliography of North American 

 Conchology previous to the year I860,- by W. G. Binney, Parts 1 

 and 2, 8vo., Washington, 1864. Cretaceous Reptiles of the United 

 States, by J. Leidy, 4to., Washington, 1866. Paleontology of 

 the Upper Missouri ; Invertebrates, by F. B. Meek and F. V. 

 Hayden, Part 1, 4to., Washington, 1865. List of the Coleoptera 



