HERBERT SPENCER'S WORKS,— [Contmucd] 



Education : Intellectual, Moral, and Physical. 12mo. Cloth, 

 $1.25. Cheap edition. Paper cover, 50 cents. 



First Principles. l2mo. Cloth, $2.00. 



Essays : Moral, Political, and Esthetic. 12mo. Cloth, $2.00. 



Illustrations of Universal Progress. A Selection of 



his best Papers. 12mo. Cloth, $2.00. 



Social Statics ; or, the Conditions Essential to Human Hap- 

 piness Specified, and the First of them Developed. 12mo. 

 Cloth, $2.00. 



The Principles of Biology. Two vols., i2mo. Cloth, 



$4.00. 



The Principles of Psychology. Two vols., i2mo. 



Cloth, $4.00. 



Recent Discussions in Science, Philosophy, and 



Morals. New and enlarged edition. 12mo. Cloth, 

 $2.00. 



Data of Ethics. Vol. I of ^'The Principles of Ethics.'' 

 Parti. 12mo. Cloth, $1.25, 



Philosophy of Style. 12mo. Flexible cloth, 50 cents. 



For sale by all booksellers ; or sent by mail, post-paid, on receipt of 

 price, 



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