Optical projection: a treatise on the use of the lantern in exhibition and scientific demonstration (1906)

Page scan 00011 from Optical projection: a treatise on the use of the lantern in exhibition and scientific demonstration

Record Details:

Title:
Optical projection: a treatise on the use of the lantern in exhibition and scientific demonstration
Date:
1906
Author:
Wright, Lewis, 1838-1905
Publisher:
London, New York, Bombay : Longmans, Green and Co.
Volume:
Optical projection: a treatise on the use of the lantern in exhibition and scientific demonstration
Leaf #:
00011
Language:
English
Collection:
Books
Format:
Books
Contributor:
University of California Libraries
Sponsor:
MSN
Coordinator:
Media History Digital Library
Description:
Date Added:
July 19, 2022
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vi OPTICAL PROJECTION other style would have been; and that the frequent use of italics is not for emphasis in the usual sense, but chiefly as the easiest way of marking points it is desirable to distinguish with some clearness. I have to thank Messrs. Macmillan & Co. for permis- sion to use the greater part of the illustrations to my previous work, entitled' Light: a Course of Experimental Optics,' and also the publishers of Professor Weinhold's ' Physikalische Demonstrationen' (Leipzig) and Dr. Stein's ' Die Optische Projektionskunst' (Halle) for many illustrations from those works. Most of the others are original; but a few have also been taken from Ganot's ' Elements of Physics,' Prof. Forbes's ' Lectures on Electricity,' some articles by Mr. G. M. Hopkins in the ' Scientific American,' and Prof. Dolbear's * Art of Pro- jecting' (Boston). The very few experiments taken or adapted from the latter work, are owing to the fact that it is written with especial reference to projections with the heliostat, which is almost useless in this country. Many such arrangements I have found unsuitable for ordinary lantern use; but where sunlight is available, Prof. Dolbear's treatise may be consulted with advan- tage. My grateful acknowledgments are finally due to my old friend and correspondent, the Eev. P. E. Sleeman, for reading the proofs of the last twelve experimental chapters, during which process several suggestions and additions of value have also found their way into those pages. LONDON : October 31,1890.