Folio (364 x 277mm.), half-title, dedication, double-page coloured map, 12 mounted chromolithographed plates, original pictorial green cloth, minor staining mostly to endpapers, hinges starting, slightly rubbed

E.H. Marples, Sheffield, bookplate

Spence 1258

Condition is described in the main body of the catalogue, where appropriate.
"In response to your inquiry, we are pleased to provide you with a general report of the condition of the property described above. Since we are not professional conservators or restorers, we urge you to consult with a restorer or conservator of your choice who will be better able to provide a detailed, professional report. Prospective buyers should inspect each lot to satisfy themselves as to condition and must understand that any statement made by Sotheby's is merely a subjective, qualified opinion. Prospective buyers should also refer to any Important Notices regarding this sale, which are printed in the Sale Catalogue.
NOTWITHSTANDING THIS REPORT OR ANY DISCUSSIONS CONCERNING A LOT, ALL LOTS ARE OFFERED AND SOLD AS IS" IN ACCORDANCE WITH THE CONDITIONS OF BUSINESS PRINTED IN THE SALE CATALOGUE."

"The voyage of H.M.S. "Challenger", between the years 1872 and 1876, must always occupy a distinguished place in the annals of geographical discovery, as being the first systematic attempt made on a large scale to explore the depths of the ocean - hitherto generally deemed unfathomable" (Preface).