Brush and Dana—Fairfield County Minerals. 33 
Art. [V.—On a new and remarkable mineral locality in Fairfield 
County, Connecticut ; with a description of several new species 
occurring there; by GrorGE J. BrusH and Epwarp S. 
Dana. First Paper. 
Historical Note. 
THE new locality of manganesian phosphates, which we 
shall describe in this and following papers, is situated near the 
village of Branchville, in the town of Redding, Fairfield County, 
Connecticut. Its remarkable character will be evident from the 
statement that we have thus far discovered, among the material 
which we have obtained from there, no less than six new an 
well defined species, besides many other known species of more 
or less rarity. 
The locality was first opened some two years since by Mr. 
A. N. Fillow, upon whose land it is situated, and who made 
considerable excavations in the search for mica of commercial 
value. Only a limited quantity of this was obtained, so that 
the work was finally discontinued and the opening filled up; 
by which means the ledge was buried under six to eight feet of 
soil. With most commendable thoughtfulness, however, he 
laid aside and preserved a large number of specimens which 
seemed to him to be of some interest. In the latter part of the 
summer of 1877, Prof. Dana visited the region and his atten- 
tion was called by Mr. Fillow to the collection of minerals 
mentioned, and by him several specimens were brought to New 
ven. Later, Rev. John Dickinson of Redding, the adjoining 
village, happened to visit the locality and obtained a considera- 
ble amount of the minerals, some of which he sent to New 
Haven for determination. It was not, however, until the early 
eee of the present year that we were able personally to visit 
the locality. Appreciating then the unusual interest con- 
nected with it, we immediately made arrangements with Mr. 
Fillow to uncover the ledge od to go forward with the explo- 
ration as thoroughly as possible. We have now pushed the 
matter as far as is practicable for the present, but later in the 
season we hope to accomplish more. The result of our work 
has been to place in our hands a large amount of material, in 
the examination of which we are at present engaged, and we 
now ready to make public* a portion of the results, In 
addition to the material we have personally obtained, we have, 
through the liberality of Mr. Dickinson, come into the posses- 
sion of a large number of additional specimens collected by 
_*Short notices o: new ies eosphorite, triploidite, dickinsonite, and 
Am, Jour. Sc1.—Tuirp —— Vox. XVI, No. 91.—JuLy, 1878. 
