Mineralogy of Orange County, N. Y. 321 
Arr. XII. 4 sketch of the Mineralogy and Geology of the Coun- 
nes of Orange (N. Y.), and Sussex (N. J.) ; by Cuarues U. 
Suzparp, Lecturer on Botany in Yale College. 
Tue adjoining counties of Orange and Sussex constitute a miner- 
alogical district, second in interest to no other in the United States. 
The variety and rarity of its productions began to attract attention as 
early as 1820; since which period, it has received frequent visits from 
mineralogists from abroad, and has been examined with a high de- 
gree of zeal and success by its own inhabitants: the result of which 
Investigations is, that, in a mineralogical point of view, no region of the 
same extent in our country, is at present better understood. The 
individuals who deserve to be mentioned as having taken the lead in 
these researches, are Mr. Nuttall of Cambridge, Dr. Torrey and 
Baron Lederer of New York, Dr. Fowler of Franklin, N.J., Dr. 
Young, of Edenville, Dr. Horton, of Goshen, and Dr. Heron, of 
Warwick, N.Y. ‘The principal information hitherto presented to the 
public concerning this district, is contained in a description of the 
mineralogy of Franklin and Sparta, by Mr. Nuttall, in this Journal, 
(Vol. V, p. 239.) a list of the minerals of Warwick, by the same 
gentleman, in the appendix to Robinson’s catalogue of American 
minerals, (p. 296,) and some notices by Dr. Torrey in the Annals of 
the New York Lyceum of Natural History, (Vol. III, p. 8.) 
A geological and mineralogical map of the district above alluded 
'o, having been forwarded to Prof. Silliman, by Drs. Young and | 
Heron, for publication in the American Journal, accompanied with a 
request that I would undertake to give a more detailed account of the 
mineralogy of the region than has hitherto been published, is the oc- 
casion of the present sketch. My visit to these counties, which was 
made last year, was unfortunately of too short duration to allow of 
the personal inspection of each locality of which I shall speak ; but 
the statements concerning such deposits as I was prevented from 
seeing, are founded upon specimens and information furnished me 
‘ince, by Dr. Young, to whose correspondence I am much indebted 
M the preparation of these notices. 
‘Tshall commence with that part of the country which first fell’ 
tnder my observation. Leaving the village of Goshen, which is sit- 
vated upon the same Argillite that had characterized the whole coun- 
ty, as seen in my ride from Newburgh to that place, my road lay 
Vou. XXI.—No. 2. 41 
