424 Scientific Antetiigenas. 
Decomposed by much soda and the resulting mass treated wil nitric 
acid, a heavy white insoluble powder remains. Boiling water causes 
the heavy powder to take a flocctilent form, which is porn This 
powder exhibits with tests, all the characters of (columbic) pe acid. 
The acid solution when mixed with carbonate of ammonia remains 
clear ; heated, some iron oxyd falls, while a light yellow tint is Risttied 
by the fluid ; oxalic acid causes the separation of a white earth, which, 
fluid, forming with potash before complete neutralization, a white cuble 
salt, which has the characters of that from zirconia, but may contain oxyd 
of ceriumalso. The oxalate as first formed does not afford, when heat- 
ed, the cinnamon irbien color, characteristic of deutoxyd of cerium. 
The ex tremely small portion of the mineral operated on forbids the 
expression of certainty respecting the bases, and although inclining to 
the opinion of the existence of cerium from ‘he red color o the crys- 
tals, I am not in possession of any facts proving this point 
. On the Red Zinc Ore of New Jersey; by A. A. Hayes, (com- 
municated to one of the Editors. )—Some recent trials on the red oxyd 
of zinc, confirm my earlier statement that the manganese is in a pro- 
toxyd state, mixed with the oxyd of zinc. The object was however to 
separate the —, of iron, so as to show that its power of coloring 
confers on the oxyd of zinc the blood red color seen in fine specimens. 
In the ones that variety of scaly peroxyd of i — which is produced 
when chlorid of iron is decomposed by vapor of water, a — 
and this oxyd, being transparent and blood-red, gives, by being inter- 
leaved with os crusts of zinc sublimate, the red color: “he evidence 
was conclusi 
the pac eh Mineral est of Lewis, Jafersn, and St. 
Lawrence counties, New York; by Hoveu.—F rom the great 
number and variety of mineral sceaien: ile were discovered during 
the course of the State Geological Survey, in the northern part of New 
York, in addition to those that were known before, and have been dis- 
co overed since, the mineral localities of that section have attained a mer- 
ited comnts among amateur collectors, and scientific mineralogists. 
of the localities have become exhausted, and others have been 
one while there are yet others which have been attributed to 
these counties through mistake. A concise account of existing locali- 
ties seems to be especially desirable. 
Lewis County.—Magnetic iron ore, associated with sulphuret of 
iron, occurs in Greig; bog i iron ore, in Watson, Diana, and New bre- 
men; ema iron ore in Diana, and iron sand on the sandy margins 
of most of the streams and lakes, throughout the primary regions in 
the soliany Calcareous tufa, abounds in many of the springs that issue 
from the limestone formation ; particularly in Low — Trem —_ oc- 
curs frequently in boulders but not én situ, in the c 
weighing about a ton occurs a mile southeast of the silane of Collins: 
ville, in West Turin. 
d occurs is the southwestern part of the town of Martinsburg, 
in nodules ——- through the soil of a swamp. ‘The masses are 
from one to three inches in diameter ; pulverulent externally, but ex- 
hibiting a glossy Sabine when broken. It soon crum mbles on exposure. 
