Interesting Works on Natural History. 3 



Sprij^s Cruise of the '' Challenger ^ 



The Cruise of Her Majesty's Ship "Challenger." Voyages over 

 many Seas, Scenes in many Lands. By W. J. J. Spry, R.N. With 

 Map and Illustrations. Crown 8vo, Cloth, $2 00. 



Thomson^ s Voyage of the '-'Challenger.''^ 



The Voyage of the "Challenger." The Atlantic: An Account of 

 the General Results of the Voyage during the Year 1873 and the 

 Early Part of the Year 1876. By Sir C. Wyville Thomson, F.R.S. 

 With a Portrait of the Author, Colored Maps, Temperature Charts, 

 and Illustrations. 2 vols., 8vo, Cloth, $12 00. 



Wallace'' s Island Life. 



Island Life; or, The Phenomena of Insular Faunas and Floras, 

 with their Causes. Including an entire revision of the Problem of 

 Geological Climates. By Alfred Russel Wallace. With Illus- 

 trations and Maps. 8vo, Cloth. (^In Press.) 



Wallace'' s Malay Archipelago. 



The Malay Archipelago : the Laud of the Orang-Utan and the Bird 

 of Paradise. A Narrative of Travel, 1854-'62. With Studies of Man 

 and Nature. By Alfred Russel Wallace. With Maps and nu- 

 merous Illustrations. Crown 8vo, Cloth, |2 50. 



Wallace'' s Geographical Distribution of Animals. 



The Geographical Distribution of Animals. With a Study of the 

 Relations of Living and Extinct Faunas, as Elucidating the Past 

 Changes of the Earth's Surface. By Alfred Russel Wallace. 

 With Colored Maps and numerous Illustrations. 2 vols., 8vo, Cloth, 

 $10 00. 



