HOUSES. 



5 1 



shop, and perhaps a place for tools. If the number 

 of houses are three or less, the boiler may be 

 placed at one end of the shed in a pit, as already 

 described. The end selected should depend upon 



12 Roofs of twelve foot houses, showing method of con- 

 struction and of attaching" ventilators; one row 

 of glass between the ventilators. 



the general slope of the land, the object being 

 to get the boiler at the lowest point. Following is 



