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Show vi PREFACE. Then as to the natural theological questions which (owing to circumstances needless now to be recalled or explained) are here throughout brought into what most naturalists, and some other readers, may deem undue prominence, there are many who may be interested to know how these increasingly prevalent views and their tendencies are regarded by one who is scientifically, and in his own fashion, a Darwinian, philosophically a convinced theist, and religiously an acceptor of the " creed commonly called the Nicene," as the exponent of the Christian faith. "Truth emerges sooner from error than from confusion," says Bacon; and clearer views than commonly prevail upon the points at issue regarding ·" 1·eligion and science" are still sufficiently needed to justify these endeavors. BouNIO GARDEN, CAMBRIDGE, MAss., June, 18'16, : . OON·TENTS. • • • This Tnble of Contents, nnd the copious Index to the volume, wore obligingly prepared by the Rev. G. F. WRIGJIT, of Andover. ARTICLE I. THE ORIGIN OF SPECIES BY MEANS OF NATURAL SELECTION. l'AO.R Views and Definitions of Species.-How Darwin's differs from that of Agassiz, and from the Common View.-Variation, its Causes unknown.-Darwin's Genealogical Tree.-Darwin and Agassiz agree in the Capital Fa?ts.-Embryology.-Physical Connection of Species compatible with Intellectual Connection.-How to prove Transmutation.-Known Extent ofVariation.-Cause of Likeness unknown.-Artificial Selection.-Reversion.-Interbreeding.- N atural Selection.-Classification tentative.What Darwin assumes.-Argument stated.-How Natural Selection works.-Where the Argument is weakest.-Objections. -Morphology and Teleology harmonized.-Theory not athe-isticaL-- Conceivable Modes of Relation of God to Nature 9 ARTICLE II. DESIGN versus NECESSITY-A DISCUSSION. How Design in Nature can be shown.-Dcsign not inconsistent with Indirect Attainment 62 |