Scovill's Photographic Series No. 26, The Photographic Instructor, Prof. Charles Ehrmann, Scovill Mfg. Co. (New York, NY), copyright 1888, ~6"x9", 196pp & 32pp ads
This is one of the books in Scovill's Photographic Series, a series of books published starting in 1883. The text of this one includes an engraving of a Waterbury Camera on page 12 and a Philadelphia Stereo Box on page 134.
Numbers in Scovill's Photographic Series scanned here include:
No. 1
The Photographic Amateur
No. 12
Photographic Chemistry
No. 20
Dry Plate Making for Amateurs
No. 22
Photographic Printing Methods
No. 25
The Photographic Negative
No. 26
The Photographic Instructor
No. 32
Practical Photo-Micrography
pages 8-11 not scanned
pages 14-133 not scanned