When a page is missing and it is impossible to replace the book with a
new copy, the page may be typewritten and tipped in.
When it is necessary to rebind the book, the margin of the typewritten
page should be left an inch wider on each side than the regular margin.
This is for the convenience of the binder, who will trim down the margin
in process of rebinding.
Make typewritten page conform to size and shape of printed page.