MINERAL ACCESSIONS 20 
months’ work in the latter region would be sure to enable the explorer 
to secure a collection of photographs, illustrating the art of the vicinity, 
as executed in the form of petroglyphs. 
It would seem to be the duty of the students of the Cliff Dwelling and 
Pueblo region to explore northward into this vast neglected area, in an 
attempt at finding the northern limit of that culture. The students of 
the archeology of the Mississippi Valley, have a similar duty to per- 
form in determining the western limits of the agricultural culture of that 
valley, while the students of California owe it to the world to investigate 
the eastern portion of that State. The eastern limits of the plateau 
culture of southern British Columbia and Washington should also be 
defined. i 
Haran I. Smirn. 
DEPARTMENT OF MINERALOGY. 
HE mineral accessions for 1907 were, for the most part, secured 
by means of the income of the Bruce endowment. Some of the 
new specimens, viz.: the interesting beryl crystals from North 
Carolina, the superb polybasite group from Mexico, the unique native 
copper from Arizona and the splendid Brazilian andorite have already 
been recorded in the pages of the JouRNAL, but others are as worthy of 
mention. An excellent display of the attractive opaque pink beryls from 
Haddam, Conn., was made by Mr. S. C. Gillette at the Progress of 
Science exhibition of the New York Academy of Sciences last winter, 
and five beautiful and instructive crystals were purchased from him 
for the cabinet. ‘They are prisms with base and terminal pyramid -— 
the latter in varying stages of development — in a quartz matrix. A 
specimen of autunite — the yellow uranate of lime — from Mitchell 
Co., N. C., has interest, and a hand specimen of the uraninite of Central 
City, Colorado, which carries gold and has been studied by Crooke, 
Becquerel and Curie on account of its richness in radium, deserves 
mention. ‘Iwo light-blue simple crystals of beryl from Mesa Granda, 
Col., massive thalénite from Sweden, mangano-tantalite from western 
Australia, heulandite from Norway, the rare mercury oxides terlinguaite 
and eglestonite from ‘Texas, a remarkable baddeleyite (?) from Brazil, 
thorianite from Ceylon, cobaltite from ‘Temiskaming and a huge dyscra- 
