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CHARLES DARWIN'S WORKS. 



ORIGIN OF SPECIES BY MEANS OF NATURAI 

 SELECTION, OR Till J PRESERVATION OF FA. 

 VORED RACES IN THE STRUGGLE FOR LIFE. 

 From sixth and last London edition. 2 vols,, 12mo. Cloth, $4.u0 



DESCENT OF MAN, AND SELECTION IN RELATION 



TO SEX. With many Illustrations. A new edition. 12mo. 

 Cloth, f 3.00. 



JOURNAL OF RESEARCHES INTO THE NATURAL 

 HISTORJf AND GEOLOGY OF COUNTRIES VIS- 

 ITED DURING THE VOYAGE OF H. M. S. BEAGLE 

 ROUND THE WORLD. Xew edition. 12mo. Cloth, $2.00. 



EMOTIONAL EXPRE.SSIONS OF MAN AND THE 

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THE VARIATIONS OF ANIMALS AND PLANTS UNDER 

 D03IESTICATI0N. With a Preface, by Professor Asa Gray. 

 2 vols. Illustrated. Cloth, $5.00. 



INSECTIVOROUS PLANTS. 12mo. Cloth, $2.00. 



MOVEMENTS AND HABITS OF CLIMBING PLANTS. 



With Illustrations. 12mo. Cloth, $1.25. 



THE VARIOUS CONTRIVANCES BY WHICH ORCHIDS 

 ARE FERTILIZED BY INSECTS. Revised edition, with 

 Illustrations. 12ino. Cloth, $1,75. 



THE EFFECTS OF CROSS AND SELF FERTILIZA- 

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 $2.00. 



DIFFERENT FORMS OF FLOWERS ON PLANTS OF 

 THE SAME SPECIES. With Illustrations. 12mo. Cloth, 

 $1.50. 



THE POWER OF MOVEMENT IN PLANTS. By Charles 

 Darwin, LL. D., F, R. S., assisted by Francis Darwin. With Illus- 

 trations. 12mo. Cloth, $2,00. 



THE FORMATION OF VEGETABLE MOULD THROUGH 

 THE ACTION OF WORMS. With Observations on their 

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