HOWES (Prof. G. B.).—An Atlas of Practical Elementary Biology. With a Preface by Prof. Huxley. 4to. 14s.
HUXLEY (T. H.). and MARTIN (H. N.).—A Course of Practical Instruction in Elementary Biology. Revised and extended by Prof. G. B. Howes and D. H. Scott, Ph.D. Cr. 8vo. 10s. 6d.
THOMSON (Sir C. Wyville).—The Voyage of the "Challenger": The Atlantic. With Illustrations, Coloured Maps, Charts, etc. 2 vols. 8vo. 45s.
THOMSON (Sir C. Wyville).—The Depths of the Sea. An Account of the Results of the Dredging Cruises of H.M.SS. "Lightning" and "Porcupine," 1868-69-70. With Illustrations, Maps, and Plans. 8vo. 31s. 6d.
Entomology.
BUCKTON (G. B.).—Monograph of the British Cicadæ, or Tettigidæ. 2 vols. 33s. 6d. each net; or in 8 Parts. 8s. each net.
LUBBOCK (Sir John).—The Origin and Metamorphoses of Insects. Illustrated. Cr. 8vo. 3s. 6d.
SCUDDER (S. H.).—Fossil Insects of North America. Map and Plates. 2 vols. 4to. 90s. net.
Ornithology.
COUES (Elliott).—Key to North American Birds. Illustrated. 8vo. 2l. 2s.