Introduction
The great demand for the first
volume of ''The Steel Square and Its Uses" convinced the writer
that a second volume on the same subject would be sure to meet
with a fair reception.
The 150,000 readers of Vol. I. will
want to see and know more of what may be done by the aid of the
Steel Square and a little mental effort.
The present volume, like the first,
contains but little of bewildering mathematics, and is brought
down as near to the operative workman's standard as possible.
Perhaps many readers of this book
will find between its covers some things they have known for
years or have seen employed by some fellow workmen; they will,
however, find many things and problems they have never seen, and
some little "dodges" they have not heard of before, any one of
which will be worth to them the whole price paid for the book.
Indeed, the writer considers the
matter and illustrations presented in this work of much more
importance to the advanced workman than that which appeared in
the first, and feels assured his labors on The Square would not
be complete without the present treatise.
At this writing (1890) over 150,000
copies of the first volume have been sold, and the demand is
still brisk, thus showing there was a want of a work of this
kind; and as the first volume did not nearly exhaust the
subject, it became the duty of the author to supplement it with
the present one, which it is thought will pretty nearly cover
the ground.
Never, perhaps, in the history of
technical literature has a work exceeded 50,000 or 60,000 of a
circulation, and it is both flattering to the author and
gratifying to the publishers to find that their efforts to aid
the workman in acquiring technical knowledge have been so
generously appreciated.
It is hoped their present efforts in the same direction will do
as much good and deserve a like appreciation.
THE AUTHOR.
New York, May, 1890.
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