After the walls of logs and clay are built to top of the fireplace proper,
split some sticks and make them about one inch wide by one and one half
inch thick, or use the round sticks in the form in which they grow, but
peel off the bark to render them less combustible; then lay them up as
shown by Fig. 261, log-cabin style. With the chimney we have four sides to
the wall in place of three sides as in the fireplace. The logs of the
fireplace, where they run next to the cabin, may have to be chinked up so
as to keep them level, but the chimney should be built level as it has
four sides to balance it. Leave a space between the chimney and the
outside wall and plaster the sticks thickly with clay upon the outside and
much thicker with clay upon the inside, as shown by Fig. 271 _A_, which is
supposed to be a section of the chimney.
Fig. 269. Fig. 270. Fig. 271. Fig. 271A. Fig. 272. Fig. 273.
[Illustration: Detail for fireplaces and flues.]