PREFACE.
THE features of the present edition of
the Luxfer Prism Hand Book are:
A series of suggestions, illustrations and
diagrams, calculated to show how Luxfer Prisms may be applied, and
to aid those intending to use them in making such application.
A series of tables, which comprise the
information or data sufficient to enable any one to determine the
kind and quality of Luxfer Prisms to be used under the conditions
of any given case.
Views and testimonials showing to what extent,
and with what degree of satisfaction, the Luxfer Prisms have been used.
|
