126 DESCRIPTION OF HOTHOUSES. 



the same as window sashes, made either to slide 

 or swing open, or shut with ease, and the top 

 sashes made of sufficiently strong outside frame- 

 work, with narrow bars of wood grooved out, in 

 •which to lay the glass, ranged lengthways, six r 

 eight, or nine inches apart ; the glass to be laid 

 in putty on the ledges or bars, with the ends 

 lapped over one another about half an inch, 

 having the puttying work neatly and closely 

 performed, thoroughly water-tight, and the 

 whole of the wood- work should be properly 

 painted. 



The dimensions of the pinery must entirely 

 depend upon circumstances, according to the 

 size of the establishment, the wish of the pro- 

 prietor, or the general intentions for which the 

 pinery is formed ; it may be from ten to fifty feet 

 long or more, from eight, ten, to fifteen feet 

 wide, and when the house is wide and lofty, the 

 top rafters should be supported by uprights in 

 the centre of the house ; these should not be 

 larger than really necessary, both as regards 

 their appearance, and also the room they take 

 up, together with obstructing the rays of the 



