Each volume, containing thirty-six illustrations, is complete in itself, and sold separately. Price 16s. plain, 21s. coloured.

"The book includes solid instruction as well as genial and captivating mirth. The scientific knowledge of the writer is thoroughly reliable."—Examiner.

"The letterpress is interspersed with vignettes clearly and cleverly engraved on stone: and the whole pile of Natural History—fable, poetry, theory, and fact—is stuck over with quaint apophthegms and shrewd maxims, deduced for the benefit of man from the contemplation of such tiny monitors as gnats and moths. Altogether the book is a curious and interesting one—quaint and clever, genial and well-informed."—Morning Chronicle.

POPULAR BRITISH ENTOMOLOGY, comprising a familiar and technical description of the Insects most common to the British Isles. By Maria E. Catlow. In twelve chapters, each being the Entomological lesson for the month. In one vol. royal 16mo, with sixteen coloured plates of figures. Price 10s. 6d.

"Judiciously executed, with excellent figures of the commoner species, for the use of young beginners."—Annual Address of the President of the Entomological Society.

"Miss Catlow's 'Popular British Entomology' contains an introductory chapter or two on classification, which are followed by brief generic and specific descriptions in English of above 200 of the commoner British species, together with accurate figures of about 70 of those described; and will be quite a treasure to anyone just commencing the study of this fascinating science."—Westminster and Foreign Quarterly Review.

POPULAR HISTORY OF MAMMALIA. By Adam White, F.L.S., Assistant in the Zoological Department of the British Museum. With sixteen coloured Plates of Quadrupeds, &c. by B. Waterhouse Hawkins, F.L.S. Royal 16mo. 10s. 6d.

"The present increase of our stores of anecdotal matter respecting every kind of animal has been used with much tact by Mr. White, who has a terse chatty way of putting down his reflections, mingled with that easy familiarity which every one accustomed daily to zoological pursuits is sure to attain. The book is profusely illustrated."—Atlas.

THE BRITISH PALÆOZOIC FOSSILS, added by Professor Sedgwick to the Woodwardian Museum. By Professor M'Coy. In royal 4to, with numerous Plates.

Part I., containing the Radiata and Articulata, is now ready. 16s.