306 = B. Sidliman on the Mining Districts of Arizona. 
adry valley, called Massacre Valley, from the sad tragedy of the 
murder of a' large party of Texan and Arkansas emigrants in 
1857 by the Mojave, Wallupi and Pah Utah Indians. We found 
the melancholy evidence of this catastrophe scattered along the 
line of Beale’s Road for several miles, over seventy persons with 
their teams and baggage wagons having been destroyed. The 
bleaching bones of the oxen, half burned remnants of waggons; 
with cooking utensils and household furniture scattered about 
or lying as they fell, attest the savage ferocity of these treach 
erous tribes. About twenty miles beyond the easterly margin 
of the San Francisco District, there is an entire change in the geo* 
logical character of the country. The porpbyritic and voleanie 
rocks give place to metamorphic schists, gneiss, and granitic 
gorge through which the trail crosses the crest, near “ 
rings.” These volcanic beds appear to be of sub-aqueous 
origin. All the loose river drift and boulders on the plane are 
cemented into a firm concrete with a white cement derived 
d 
£ 
8 quartz, accompanied by ores © 
: _— — the ‘Pride of the Pines,” ' 
et wide, and possesses promising characteristics, ‘The sample 
collected by me, although showin no free press yielded $30 
: 7 nee the characteristics con: 
es Of the Sierra Nevada, and the sa 
general N.W. and S.E, direction, while, it will be remembe 
