Chapter III: Part I: Chapter I

Introduction--Light--Solar Spectrum--Decomposition of Light--Light--Heat
and Actinism--Blue Paper and Color for the Walls of
the Operating Room--Proportions of Light, Heat and Actinism
composing a Sunbeam--Refraction--Reflection--Lenses--Copying--Spherical
Aberration--Chromatic Aberration 13

CHAPTER II.

Camera--Arrangement of Lenses--Camera Tubes--Camera Boxes,
Bellows, and Copying--Camera Stands--Head Rests--Cleaning
Vice--Nitrate Bath--Leveling Stands--Printing Frames--Collodion
Vials 26