Henker, "Lens."

Contents

About the Text
p. 421; Fig. 1
p. 422; Fig. 2, Fig. 3
p. 423; Fig. 4, Fig. 5, Fig. 6
p. 424; Fig. 7, Fig. 8
p. 425; Fig. 9, Fig. 10, Fig. 11, Fig. 12, Fig. 13
p. 426; Fig. 14, Fig. 15, Fig. 16, Fig. 17
p. 427; Fig. 18, Fig. 19, Figs. 20 & 21, Fig. 22

1 - About the Text

This is a reprint in the form of scanned images of

Henker, Otto. "Lens." in Encyclopædia Britannica. Eleventh Edition. ("Handy Volume Issue") NY: Encyclopædia Britannica Company, 1910. Vol. XVI, pp. 421-427.

The notes on the contributors describe Otto Henker, Ph.D. as "On the staff of the Carl Zeiss Factory, Jena, Germany" (xi).

The treatment of geometric optics here is unusual in that it draws attention to the early work (1856) of James Clerk Maxwell in this field.

This article by Henker is in the public domain.
The reprint of it here is (that is, the images are) dedicated to the Public Domain.
Important disclaimers of warranty and liability in the presentation of public domain material.

The rest of this page is copyright © 2003-2004 by David M. MacMillan.
This work is licensed under a Creative Commons License, which includes important disclaimers of warranty and liability.

lemur.com is a service mark of David M. MacMillan and Rollande Krandall.
Other trademark recognition.

Presented originally by lemur.com.^SM

A Library of Antiquarian Technology