Stone, Brick, or Concrete.	Per cent.	Wood.	Per cent.	Other materials.	Per cent.	Total Houses.
1860	13,978	59	6,285	26	3,464	15	23,727
1855	9,101	54	4,709	28	3,087	18	16,897
Increase	4,877		1,576		377		6,830