UNITED STATES STANDARD SCREW THREAD GAUGE.

[Illustration: Fig. 316.]

Some Things Personal.

In the preparation of this work the idea of self-help has never been

forgotten; nothing has been held back or omitted which would, in the

author’s opinion, tend to advance the student in the draughtsman’s art.

The volume contains the experience in practical drawing, as related to

engineering and mechanics, of over one hundred years, i. e., the

author’s, Mr. Perrott’s and Mr. Lucas’ experiences added together exceed

that period.

Hence, the work should be really helpful; it has been aimed also to be

entertaining and with easy tasks; all the illustrations of the book are

recommended as models for practice--they have been selected with that

view.

Moreover, as between author and publishers, the latter have agreed to

issue the work in the most thorough style possible--as to paper,

printing and binding--and to sell it at a very generously low price,

considering all things.

With the closing words “hail and farewell,” the author bids adieu (God

be with you) to the reader and the student.

[Illustration: BEACON LIGHT.]

Self

Hawkins’ Mechanical Drawing.

Help

Index.

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