D, APPLETON & CQ.’8 FUBLICATIONS, 
CHARLES DARWIN’S WORKS. 
ORIGIN OF SPECIES BY MEANS OF NATURAL 
SELECTION, OR THE PRESERVATION OF FA- 
VORED RACES IN THE STRUGGLE FOR LIFE. 
From sixth and last London edition. 2 vols., 12mo. Cloth, 
$4.00. 
DESCENT OF MAN, AND SELECTION IN RELATION 
TO SEX. With many Illustrations. A new edition. 12mo, 
Cloth, $3.00. 
A NATURALIST’S VOYAGE AROUND THE WORLD. 
Journal of Researches into the Natural History and Geology of 
Countries visited during the Voyage of H. M.S. “Beagle.” 
Tllustrated with Maps and 100 Views of the places visited and 
described, chiefly from sketches taken on the spot, by R. T. 
PRITCHETT. 8v0. Cloth, $5.00. 
Also popular edition. 12mo. Cloth, $2.00, 
THE STRUCTURE AND DISTRIBUTION OF CORAL, 
REEFS. Based on Observations made during the Voyage of 
the “Beagle.” With Charts and Illustrations. 12mo. Cloth, 
$2.00. 
GEOLOGICAL OBSERVATIONS on the Volcanic Islands and 
Parts of South America visited during the Voyage of the 
“Beagle.” With Maps and Illustrations. 12mo. Cloth, $2.50. 
EMOTIONAL EXPRESSIONS OF MAN AND THE 
LOWER ANIMALS. 12mo. Cloth, $3.50, 
