Twenty pages without transposition
383
_
_ 10
transposition of pages or
12
9
11
(See Scheme 46.) of Scheme 45
plates.
The pages
can be rearranged to make
two sections: one of 16 and one of 4 pages, or one of 12 and one of 8 pages. In Scheme 46 a transpopages of the avoided by turn-
sition of the
inset is
5
16
8
81
1
20
81
-
8
15
-
6
ing the sheet on the long cross.
The sheet, first cut
the long way, has two parthe narrow allel folds
way
before the inset
is
inserted.
When
pages are in the customary proportion of width 1 to height 1, the 20-page form will be long and narrow and not properly adapted to the shapes of paper kept on sale. To
avoid waste, paper has to be made to order of prescribed sale are
of
1
46
L 19
2
I
Twenty pages chase,
as
one
in one section,
without a transposition. Turns on the long cross.
Papers on adapted only for the small quarto shapes
size.
20mo
forms.
Scheme 47, practically a sheet of 32 pages with an added inset of 8 pages, may serve for a cheap