Report on the Geological Survey of Connecticut. 155 
‘A scientific report, embracing notices of all the simple minerals 
of the State, independently of their relations to the other sciences 
or even to the arts, though uninteresting to the general reader, still 
seemed to be demanded, not only to supply the wants of the many 
students of mineralogy in the public institutions of the State where 
the science is taught, but also for the purpose of indicating with accu- 
racy the numerous productions which still lie dormant as respects 
any useful applicability, but which the progress of the arts may ere 
long call into requisition. It may be added also, that it was pre- 
sumed the scientific community generally, were in the expectation 
of finding in this report a summary at least of the leading features of 
our mineral productions, since mineralogy has longer been cultivated 
and taught as‘a branch of education here, than in any other section 
of the country. The subject, for want of space, has necessarily been 
treated in an imperfect manner; though I venture to hope, that inas- 
much as many of the facts are new, it will not be found wholly de- 
void of interest to the mineralogist. It was certainly an unexpected 
result to myself, to be able to detect in so small a territory as that 
of Connecticut, and one whose strata had been so little perforated 
by mining operations, nearly one half of the well established min- 
eral species hitherto discovered thoughout the world, and fully three 
quarters of all the elements as yet made known to us by chemical 
analysis; much less was it anticipated at the outset, that it would 
become necessary, in the progress of this work, to add several new | 
species to the productions of the mineral kingdom.” 
Mr. Shepard’s Jabor is included under the three heads, 
Economical Report, Scientific Report, and Descriptive Catalogue. 
Under the Economical Report, there are the following divisions— 
1. Metals, 2. Coal, 3. Plumbago, 4. Gems, 5. Polishing and 
Grinding Materials, 6. Soapstone and Potstone, 7. Materials for 
Alcaline and Earthy Salts, 8. Materials for Bricks, Pottery, 
Porcelain and Glass, 9. Fire-stones, 10. Fluxes, 11. Quick-lime 
and Water-cement, 12. Stone-Paints, 13. Decolorizing carbon- 
aceous slate, 14. Materials for Architecture and Decoration, 15. 
Materials for Flagging, Tiling and Paving, 16. Mineral Springs, 
17. Materials for Agriculture. 
The State possesses many good deposits of iron ore. 
Of Magnetic Ore—there is a powerful bed at New Preston, on 
land of Alvan Brown—in the Buck Mountain, on the Housatonic 
river—in Reading, on land of Mr. Gregory. 
