ON THE USE OF STONE IN CITIES 35 1 



which the sandstone block pavement is put down is two dollars 

 per "square yard ; the asphalt costs three dollars. The total 

 aggregate length of stone pavement, according to the 

 mayor's report, on January i, 1889, was 127.14 miles. In 

 the sidewalks some Ohio sandstone and some blue-stone 

 from Pennsylvania have been used, but the Medina sand- 

 stone predominates. On the older walks, three lines of 

 stones, which are three feet by two feet, are laid, making 

 a walk six feet wide. Larger flagstones, and, generally, 

 thicker stone, with smooth surfaces, are now put down. The 

 total length of paved sidewalk is estimated at two hundred 

 miles, of average width of five feet. ^ 



LOCKPORT 



Lockport is a small city of stone. The United States 

 census of 1880 reported that seven and five tenths per cent 

 of its buildings were all-stone, and four per cent partly of 

 stone. A count made for this report gives the following 

 statistics : 



All-stone buildings 266 



Stone fronts and rears 67 



Total 333 



A peculiarity practiced here in construction is in putting 

 brick fronts with stone side and rear walls.f 



Formerly the gray and the mottled, red and gray Medina 

 sandstones, from quarries north of the place, were much 

 used in building, and many of the older structures in 

 the lower part of the city, are of this sandstone. These 

 quarries were opened first in 1824. The gray limestone of 

 the Niagara period, which runs across the city in a bold 

 ledge, is known from the quarries here as Lockport gray 



* Letter of George E. Mann, City Engineer, 



f The total number of all-stone and part stone buildings may be put safely at 340, 

 as some of the latter class may have escaped notice. 

 21 



