PROPAGATION. 
If one has any considerable amount of planting to do it will be 
almost absolutely necessary to build some kind of a propagating 
house or even more than one. Such buildings should be placed 
where they will be well sheltered from winds, and especially the 
northwest wind. They should have sunshine the greater part of 
the day. Posts can be set in the ground, their tops being a little 
over six feet high, and on these a horizontal strip can be nailed at 
the top and bottom. On these strips vertical pieces of I x 3 
should be nailed, leaving about an inch and a half space between 
them, or the north and west sides may be boarded up close or all 
sides if thought best. Pieces of 2 x 4 may be nailed across the 
top about six feet apart and supported by other posts and on 
these a flat roof of 1 x 3 slats should be nailed. These slats may 
have spaces left between them anywhere from an inch and a half 
to two inches wide. Part of this roof may be laid closer than the 
rest if necessary and if considerable shade is required for any pur- 
pose the slats over that part may be laid with one-inch spaces or 
even less. There will need to be a door, and one must have a 
well inside, or if outside as close to the door as possible. This is 
the cheapest, simplest form of slat house and may be built from 
ten feet square to a large size, either of rough material or dressed 
stuff and painted. Shelves on which to sow seeds or plant cut- 
tings can be built along one or more sides of the structure at a 
height of three to three and a half feet above the ground and from 
two to three feet wide. A rim should be made along the inside 
of the shelving and two or three inches of sand or earth placed 
on the shelves. One may, however, be quite successful rooting 
cuttings or raising seedlings in the ground without having 
shelves. 
A much more ornamental and permanent structure can be 
built with concrete walls and a span roof, the ridge of which had 
better run north and south. The side walls of such a building 
can be four and a half feet high, and the end walls may be the 
same height with the upper part of wood or the whole may be 
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