Michael, A.D. — British Tyroglyphidae.

1901-1903 Two volumes (complete). 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. Top edge gilt. Library stamps and spine slightly discoloured, else a good, tight bound set. 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.