68 
PARK AND CE/AETERY. 
Greenhouses. — How to Build. VI. 
Fig. 8 and Fig. 9 show two forms of outside 
wall when no gutter is used. Fig. 8 is the simpler 
but the very wide plate (5) used is likely to check 
and warp and the water is apt to get into the wall. 
Strips should be screwed across the under side af- 
ter it is joined together, to prevent warping as far 
as possible. Both plates, (4 and 5) are attached 
directly to the tops of the posts which must be cut 
off true to receive them. The posts can be easiest 
cut off true by jointing two 16 foot boards true on 
the edges and tacking them to opposite sides of the 
posts, so that their upper sides are in the true line of 
the cut. The flat of the saw is laid against the up- 
per edge of these boards and the cut follows the 
line of their edges. 
In Figs. 7, 8 and 9, also Fig. 10, (2) is a por- 
tion of the sash bar showing its attachment. 
Fig. 10 shows the inside wall and peak of the 
roof, the latter supported by i inch iron pipe, (v) 
is the ventilator, hinged to the ridge piece and 
resting, when closed, upon the upper part of the 
sash bars. 
The inner wall is the same as the outside wall 
with gutter, (Fig. 7,) except that the No. i sill is 
used on each side, the brackets are 4 inches longer 
on top and project from each side of post, and the 
paper and siding is omitted, one thickness of ship 
lap only being used. 
Great care must be taken to keep the upper an- 
gles of all sills and wall plates, (if Fig. 8 wall is 
used) or wall plate sills at the same absolute height 
without regard to irregularities in the ground. That 
is, if a straight edge be laid across from sill to sill, 
(or sill to plate as may be,) at right angles to the 
length of the house, it should show perfectly level. 
Of course, as before shown, all sills will have a uni- 
form drop to the south. 
Figure ii shows the peak of the roof. The 
ridge piece (7) is worked from 2x4 inch stuff and 
runs the length of the house, supported at intervals 
as explained before by i inch iron pipe (10). Be- 
tween the pipe and the wooden ridge is the iron 
washer (8). The washer is held in place by the lag 
screw (9) passing through it and into the ridge. The 
head of the lag screw is inside the pipe, (which is 
cut away in the cut to show it), and prevents the 
pipe from being forced out of place. The upper 
part of the ridge is beveled from the middle each 
way to be continuous with slope of the bars. The 
bars (5) are mitered to fit snugly against the sides 
of the ridge, the upper side of the tongue (4) in ex- 
act line with the bevel of the ridge. The glass (i ) 
rests on shoulders on the bars and projects a short 
distance into a groove cut in the ridge. A longi- 
tudinal groove (6) is cut in the bars to carry any 
moisture collecting on the inside of roof down to 
the sill. 
A cross section of the sash bar with parts bear- 
Fig. 14. Fig. ii. 
ing corresponding numbers is shown in Fig. 13. 
The ventilator (3) is hinged to the ridge, as 
shown, which is perhaps the best arrangement for a 
plant house. In Fig. 2 in a former paper a wider 
ridge piece is shown, projecting above the roof and 
carrying a cap, the ventilator being hinged below. 
This is more used in forcing houses. 
The pieces to form the ridge should be gotten 
approximately into place and being fitted for 
halved joints should be spliced in the same careful 
manner as the gutter parts. 
Willis N. Rudd. 
(To be Co7tHnned.) 
The Board of Trustees of Elmwood Cemetery, Deti'oit, 
Mich., has issued a very handsome brochure giving the history 
of the cemetery which was organized in 1846, and incorporated 
in 1849; a report of Mr. F. L. Olmsted dated 1891, embodying 
improvements; Rules and Regulations and the Act of Incorpor- 
ation. It is printed on the old style paper, contains some thir- 
teen full page half tone engravings, and is altogether a hand- 
some specimen of pamphlet production. 
