Scovill's Photographic Series No. 32, Practical Photomicrography, Andrew Pringle, The Scovill & Adams Co. (New York, NY), copyright 1890, ~6"x9", 10pp preface & index, 184pp & 19pp ads
This is one in Scovill's Photographic Series, a series of books published by Scovill Mfg. Co. starting in 1883.
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