Illustration of British zoology. On May 1, 1799, will be published, The first number of an entirely new, complete, and elegant work, designed as a companion to the Natural Histories of British Birds and Insects: the Natural History of British Shells, including figures and descriptions Of all the Species hitherto discovered in Great Britain; systematically arranged in the Linnean Manner, with Scientific and General observations on each. By E. Donovan, F. L. S. Author of the Natural Histories of British Birds, Insects, &c. &c. London: Printed for the Author, and for F. and C. Rivington, No. 62, St. Paul's Church-Yard. Conditions: I. This Work shall be elegantly printed in Octavo, on a fine Wove Royal Paper, and Hot-Pressed. II. Three Plates shall be given in each Number, with Descriptions: they will be printed on Whatman's Drawing Paper, and correctly finished in Colours from perfect Specimens of the Shells - Price 2s. 6d. each Number. III. This Work shall be completed in Sixty Monthly Numbers. An Index for the systematic Arrangement will be given at the End of each Volume, containing Twelve Numbers.