UUILDING AND OICNAMENTAL «ToNE.S. 4K5 



been used to sonic extent in ]Srewi)oit, K. 1., and some of tlie material 

 may be seen in the Chaney Menioiial Cliurch at tbis pUiee. Contrary to 

 the general rule in red granites, the teldsi)ars of tbis rock are not ojuioue, 

 but quite elear and transparent, and in point of beauty the rock far 

 excels the celebrated Scotcb granites from Peterhead. The Haddani, 

 Greenwich, and Bridgeport gneisses are all hornbleudic, ver^' dark 

 graj', and split readily in the direction of their lamination; their uses 

 are strictly local. 



Delaware. — This State [)roduces scarcely anything in the way of gran- 

 ite rocks. A few quarries of a dark gray gneiss are worked near Wil- 

 mington, and are used for general building purposes in this city. One 

 church and several private dwellings have been constructed of this 

 stone, which belongs to the class known as a iqjite hornblende gneiss, 

 since it contains both of these minerals in about equal proportions. 



Georgia. — Although this State is known to contain inexhaustible 

 (pumtities of building stones of the finest quality, but little systematic; 

 (piarrying is done, and none of the rocks have more than a local repu- 

 tation. A fine grade of muscovite granite, light gray in color, occurs at 

 Stone ^lountain, near Atlanta, and also a dark gray hornbleudic gneiss. 

 A hornbleudic granite resembling that of (^uincy, Mass., is said to 

 occur in Oglethorpe County, though the author has never seen any of 

 the material. 



Elaine. — The large extent of coast-line of the State of Maine, composed 

 of granitic rocks of a kind suitable for building i)urposes, renders possi- 

 ble the shipment and transportation of the -quarried rock at rates much 

 lower than would otherwise be attainable, the (puirries being frequently 

 situated so near the water's edge that little, if any, handling is neces- 

 sary i)rior to loading U}H)n the vessel. This favorble circumstance, to- 

 gether with the excellent <juality of the rock obtainable, led to the early 

 opening of very numerous <puirries both on the mainland and the 

 adjacent islands, and hence at the present time are found Maine granites 

 in very general use in nearly every city of inq)ortance in the country, 

 eveu as far west as Califoi-nia, freipu'utly to the almost entire exclusion 

 of perhaps equally good material close at hand. 



According to the returns furnished by the special agents in theenq)l()y 

 of till! building-stone dcjjartmentof the Tenth Census, there wert'duiing 

 the census year some eighty-tliree ipiarries of various kinds of buihling 

 stone in tiie State, situated chiefly either immediately on the coast or 

 within easy reacli of tide- water. 



Of these eighty-three (puirries seventy-four were of granite or gneiss. 

 The diflerent varieties of these stones produced may be classed under 

 the following heads: ])i()tite granite, biotite-muscovite granite, horn- 

 blende granite, hornblende-biotite granite, biotite gneiss, and biotite- 

 muscovite gneiss. 



Biotite granite. — The great majority of the Maine granites are of 

 this kind. They vary usually from light to dark gray in color, though 



