BY THE SAME AUTHOR. 



A NATURALIST'S VOYAGE ROUND THE WORLD; or, 



A Journal of Researches ikto the Natural History and Geology of 



the Countries visited during the Voyage of H.M.S. ' Beagle,' under the com- 



and of Captain FitzRoy, R.N. Sixteenth Thousand. 9s. Murrat. 



ORIGIN OF SPECIES BY MEANS OF NATURAL SELEC- 

 TION ; or, The Preservation of Favoured Races in the Struggle fok 

 Lifl ^Twenty-eighth Thousand. 7s 6d. Murray. 



VARIOUS CONTRIVANCES BY WHICH BRITISH AND 



FOREIGN ORCHIDS ARE FERTILIZED BY INSECTS. Fourth Thousand. 

 With Woodcuts. 9s. Murray. 



VARIATION OF ANIMALS AND PLANTS UNDER DO- 

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Murray. 



DESCENT OF MAN, AND SELECTION IN RELATION 



TO SEX. With Illustrations. Nineteenth Thousand. 9s. Murray. 



EXPRESSION OF THE EMOTIONS IN MAN AND ANI- 

 MALS. With Illustrations. Ninth Thousand, 12s. Mursjay. 

 INSECTIVOROUS PLANTS. With Illustrations. Fourth Thou- 

 sand Us Murray. 

 MOVEMENTS AND HABITS OF CLIMBING PLANTS. 



With Illustrations. Third Thousand. 6s. Murray. 



EFFECTS OF CROSS AND SELF-FERTILIZATION IN THE 



VEGETABLE KINGDOM. Third Thousand. 12s. Murray. 



DIFFERENT FORMS OF FLOWERS ON PLANTS OF THE 



SAME SPECIFS. Third Thousmd. 10s. 6d. Murray. 



LIFE OF ERASMUS DARWIN. By Ersest Krause. With 



Preliminary Notice. 1.-. 6d. .Murray. 



POWER OF MOVEMENT IN PLANTS. With Woodcuts. 



Second Thousand. 15s. Murray. 



FORMATION OF VEGETABLE MOULD THROUGH THE 

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 9s _ Murray. 



ON THE STRUCTURE AND DISTRIBUTION OF CORAL 



KEEFS. Second Edition, revised. Smith, Elder, & Co. 



GEOLOGICAL OBSERVATIONS ON THE VOLCANIC 



ISLANDS AND PAKTS OF SOUTH AMERICA, visited during the Voyage 



of H.M.S. ' Beagle.' Second Edition. Smith, Elder, & Co. 



A MONOGRAPH OF THE CIRRIPEDIA. With numerous 



Illustrations. 2 vols. Ray Society. Hardwicke. 



A MONOGRAPH OF THE FOSSIL LEPAD1D.E, OR 



PEDUNCULATED CIllRil'LDS OF GREAT BRITAIN. 



Palsontographical Society. 



A MONOGRAPH OF THE FOSSIL BALANID.E AND 



VERRUOID.E OF GREAT BRITAIN. Pal.eo.siograi'hical Society. 



FACTS AND ARGUMENTS FOR DARWIN. By Fritz 

 MOllk.r. From the German, with Additions by the Auinor. Tran^atJd by 

 W. S. Dallas, F.L.S. With Illustrations. 6s. MuiiKAr. 



LONDON : PRINTED BY WILLIAM CLOW ES AND SONS, LIMITED, SIAJIEOSD sTBEfir 

 AN D UWRLUj JSiipiS. 



AUG 1 9 1957 



