56 CONSTRUCTION. 



Sash bars, clear cypress, one and one-quarter by two and 

 one-half inches, with drip groove, all bars to extend 

 from gutter to ridge. 



Rafters, none. 



Ridge, clear cypress, two by six inches, with ridge cap. 



Top ventilators on both sides, each ventilator two by four 

 feet, or long enough to cover three sash bars and 

 glass, leaving one row of glass between each two 

 ventilators, headers under ventilators. 



Ventilators on sides, two by four feet, continuous, and 

 made to lap on posts. 



Ventilator-raising apparatus for top and sides consisting 

 of geared wheels, shafts, arms, and rods. 



Glass, ten by fifteen inches, double thick, second quality, 

 lapped, and bedded in putty. 



Posts for supporting sides of beds, two by four inch hem- 

 lock, set four feet apart and wired to opposite posts 

 to prevent bed from spreading. 



Sides of beds, one inch hemlock or cypress, nailed to out- 

 side of posts. 



Heating pipes, black wrought iron and screw joint, being 

 run so that the highest point is directly over the 

 boiler. 



Flow pipe, two and one-half inches, to be carried directly 

 under the ridge and to fall to south end about one 

 inch in every ten feet. 



Returns, twelve one and one-half inch pipe, to fall one 

 inch in ten feet from south to north end, two pipes to 

 be carried over center bed and five along each wall. 

 This will give sufficient radiating surface to maintain 

 with hot water an inside temperature of fifty degrees 

 F. with an outside temperature at zero and no wind 

 blowing. Plugged openings should be left for at 

 least four additional returns so as to be on the safe 

 side. This can be done with very little additional 

 expense and may be worth a good many dollars at 

 some future time. 



As many houses as may be desired can be built after this 

 plan, all connecting at the north end with the shed 

 having a slope running to the north, the same as 



