ON THE USE OF STONE IN CITIES 343 



church, the new arsenal, and Willard hall and Morgan hall 

 of the Theological seminary. On Genesee street there are 

 about twenty stone store fronts, and all about the city lime- 

 stone buildings are to be seen. 



Very little stone other than that from the local quarries 

 has been used here. Perhaps the most beautiful example 

 is the High school building, Its first story In rock-face ashlar 

 of Potsdam sandstone and Longmeadow, Massachusetts, 

 brown sandstone trimmings. The bright-colored Potsdam 

 stone looks well, associated with the sombre-looking Long- 

 meadow sandstone. Another example of the Potsdam sand- 

 stone is seen In a new house on Genesee street. The Me- 

 dina sandstone, from Albion, Is seen In Gen. McDougall's 

 house. Scotch sandstone appears In a national bank build- 

 ing on the same street. 



Streets. — Of the eighty miles of streets In the city, 

 about one mile is paved with Medina sandstone blocks. 

 The aggregate length of flagstone sidewalks is about 

 twenty miles. The flagstone Is obtained from Trumans- 

 burgh.^ 



Rochester 



The city of Rochester has within its limits several large 

 quarries in the Niagara limestone, which supply nearly all 

 of the stone needed in foundations, party-walls and common 

 rubble-work. This stone is sold at six dollars per cord, de- 

 livered. It is sometimes dressed for rock-face ashlar-work 

 also. The Medina sandstone formation affords an Inferior 

 building stone, but it is not now used.f The older mill 

 buildings seen along the river are constructed of Inferior 

 grades of sandstone, and of limestone. In the newer mills 

 and factories brick, with red Medina sandstone, Is used gen- 

 erally. The newer mercantile structures are, also, largely 



* Letter of D. F. Austin, City Surveyor, January 17, 1890. 



f Formerly this stone was quarried in the bed of the Genesee. — Geology of the 

 Fourth District, by Prof, Hall, p. 432. 

 20 



