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iv
PREFACE

principles of both that should be known. Taken altogether, this work, I think, contains all the information that is necessary to intelligently study, design, install and operate a compressed pumping plant of any size or capacity.

I desire to express my thanks to the authors from whose works I have quoted and to the various manufacturers named in the text for furnishing the cuts needed.

E. M. I.

June 8, 1914.