ORCHARD HOUSE. 



347 



ORCHARD HOUSE. 



deep, the whole forked over and well 

 mixed with the soil 9 inches deep. 



Orchard House, Span-roofed. 



a lean-to house has been described s 



and formed of old lime rubbish and road purpose of roof-ventilation found necessary 

 sancl, mixed with manure laid 4 inches in this house. The only ventilators are 



the shutters I foot deep on each side and 

 2 feet 6 inches from the ground, and the 

 angular opening over each door. The 

 diagram given, as already said, affords a 

 sectional view of the house, and it shows 

 the end elevation also. The ground line 

 or level is shown by AA. The borders, 

 B, B, are slightly raised above the ground 

 line and level of the central path, being 

 edged with tiles or stones, shown in section 

 at c, c ; they are 5 feet 6 inches wide, 

 and the path, D, between them is 3 feet 

 wide. The posts are shown by E, E, sur- 

 mounted by wall plates, L, L, on which 

 are notched the rafters, M, M, butting 

 against a ridge board, N, above which are 

 the boards which are laid on the rafters to 

 form the ridge and cover the edges of the 



FIG. 7. DRAINAGE OF APPROACH TO DOOR BY 

 STEPS FROM WITHOUT. 



it may be useful to supplement it with a 

 brief description of a span-roofed house, 



which comprises the advantage of border panes of glass in the highest row next the 

 as well as pot cultivation. There will be \ ridge. From M to M runs the iron tie 



no occasion to show every part in detail 



by diagrams, as the method of building it 



is the same. A simple section of the 



structure, as given in the accompanying 



diagram, will be sufficient. In this the 



height at sides is 5 feet ; the height of 



ridge, 9 feet; the width, 14 feet. The 



roof rests on oak posts 5 inches by 3 



inches. The rafters are 20 inches apart . 



it is glazed with i6-ounce glass, in 2O-inch 



squares. Under the eave boards, the sides, 



back, and front, are filled in with glass 15 



inches deep, joined without putty. Under 



this is a ventilating board, on hinges, 



opening downwards ; below this are f- 



inch boards, to the ground ; the two ends 



are glazed to the same level as the side 



lights ; the doors, with glass sash, opening | Between F and G are the lines of venti- 



inwards. Over the door an angular space, I lating boards, the ventilators, K, K, being 



9 inches deep> is found sufficient for roof shown as open : they are hinged to the 



attached to the rafters to strengthen them. 

 The space COPC in centre, enclosed by 

 dotted lines, represents the door in the end 

 elevation, and the triangle N, just under 

 the ridge, shows the ventilator for the 

 roof, its position when open being indicated 

 by the triangle N'. At H, H, between L 

 and F on each side of the house, there is 

 glass, but the structure is boarded up all 

 round to the height of the dotted line FF. 



FIG. 0. MODE OF ATTACHING AND FASTENING 

 VENTILATORS. 



ventilation ; the rafters, 3-inch by i^-inch 

 stuff, are tied at the top with a light iron tie 

 screwed to the rafters. No putty is placed 

 in the laps of the glass, which serves every 



boards immediately below by the lower 

 edge, and when closed are secured by 

 buttons. This form of house is more 

 desirable than that of the lean-to pre- 



