130 B. Silliman—Mineralogical Notes 
a new species, I would propose for it the name priceite, in honor 
of Mr. Thomas Price, the well known metallurgist of San Fran- 
cisco. Mammillary and radiate masses of aragonite, some of 
great size, but more frequently as crusts, occur with the price- 
ite, and were at first mistaken by the miners for a variety of 
this borate of lime. 
6. Ulexite—The boronatrocalcite of Ulex proves to be 
an abundant mineral in Nevada and Arizona. The specimens 
of this species which I have examined are from near Columbus, 
e 
commonly known as “alkali,” beneath which the borax salts 
(chiefly wleaite) are found, at a depth of a few inches, when 
they exist at all. As these “alkaline” wastes are now attract 
ing attention from the commercial importance attached to the 
borax salts, we may hope to obtain yet other contributions of 
interesting species. The saline salts removed in obtaining the 
orax salts recur again after an interval of time, during which 
7. Borax.—On the eastern slope of the Sierra Nevada, not 
far from Walker's pass, borax is found in what appears to be 
the bed of an ancient lake, large crystals of tinkal having bee? — 
found in the hardened mud, like the well known crystals of 
