112 
inches long, as stated by Mr. Rivers, in the detail of their cost, 
hereafter given. 
The posts and rafters are made of larch poles, sawed in halves; 
and the frames or sashes for the glass are of deal, unplaned ; 
constructed without the usual dove-tailed joints — being simply 
fastened across each other. This simplicity of structure, of 
course, saves expense and labour, without interfering with the 
efficiency of the sashes. The posts which carry the roof, and 
also those which sustain the trellis, are charred at the lower 
end ; this will cause them to last many years, without giving 
trouble. The whole, when complete, is dressed over with gas- 
tar, of which Mr. Rivers, the celebrated nurseryman, has a very 
high notion, as applied to out-door gardening structures. He, 
moreover, points to the eligibility of ‘yellow pine varnish,’ for 
a similar purpose. Mr. Ker thinks that cherries and plums 
may be cultivated at the back of the peach trellis — that is, 
trained at the back of the frame which supports the lights, but 
still beneath their shelter. He has used a covering of leaves, 
two feet in depth, over the peach roots, in order to keep them 
warm. 
Mr. Rivers plants his peach trees in a slanting direction, so 
that their branches fit readily to the trellis, without any bending. 
They are planted six feet apart, and he intends removing every 
alternate tree, after three or four years, to another trellis; then 
they will be left twelve feet apart. 
To show the economical character of this structure, we beg 
to subjoin the expense, as stated by Mr. Rivers. Each light is 
6ft. Sin. by 3 ft. 2|in., and contains 2 bars, 2|in. by lin. ; 2 
sides, 2iin. by lin.; 1 cross-bar at bottom, 2|in. by lin.; 1 
cross-bar at top, 2|in. by lin. ; and 1 cross-bar in the middle, 
2iin. by lin. This gives about H cubic feet of timber; this, 
for one light, will be — 
s, d. 
1| feet of timber, at Is. 6d., 2 3 
3 rows of glass, 20ft. at 3d., 5 0 
Sawing, about 0 9 
Labour and nails, 1 0 
Glazing and Putty, 0 9 
9 9 
