4to. Half-title; illustrated. Original publisher's green cloth gilt (hinges starting). Provenance: Keith Steel-Maitland (bookplate). 

FIRST EDITION IN ENGLISH, translated by Wynne E. Baxter. "The Fourth Edition of this book had only just appeared when Mr. Wynne E. Baxter, a skilfull English microscopist, honoured us by offering to publish an English Edition...Materials accumulated to such an extent that we may now issue the present volume, not as a translation of the Fourth Edition, but as being a really new Work--a Fifth Edition" (introduction). A BRIGHT COPY.