The struggle for existence.--Natural selection.--Correlation of
organs.--Fortuitous variation.--Origin of the fittest.--Nägeli's
theory: Initial tendency supreme.--Weismann and the Neo-Darwinians:
Natural selection omnipotent.--The Neo-Lamarckians.--Comparison of
the Neo-Darwinian and the Neo-Lamarckian views.--"Individuality" the
controlling power throughout the life of the organism.--Transmission
of special effects of use and disuse.--Summary.


CHART SHOWING SEQUENCE OF ATTAINMENTS AND OF DOMINANT FUNCTIONS


PHYLOGENETIC CHART OF THE ANIMAL KINGDOM


INDEX





INTRODUCTION


In the year 1865 Professor Samuel Finley Breese Morse, to whom the
world is indebted for the application of the principles of
electro-magnetism to telegraphy, gave the sum of ten thousand
dollars to Union Theological Seminary to found a lectureship in
memory of his father, the Rev. Jedediah Morse, D.D., theologian,