Michael, A.D. — British Tyroglyphidae.

1901-1903 Two parts in two. xv, 293, xi, 183 p., 42 [1: A-C, I-XIX; 2: XX-XXXIX] lithographed plates of which 28 tinted or finely coloured, original blind-tooled cloth with gilt title on spine and gilt vignette on front board. A thorough study on these Acari with fine illustrations. Some antiquarians claim that all plates are coloured, or that there are more than 42 plates but that is quite certainly incorrect. Ex library set with stamp on front paste-downs only. The boards' edges much wormed, and spines loose. A working copy only.