Transcriber's note: A few typographical errors have been corrected. They appear in the text like this, and the explanation will appear when the mouse pointer is moved over the marked passage. Figures 41 and 42 have been interchanged from the printed copy in order to match the text.

Princeton University

THE LOUIS CLARK VANUXEM FOUNDATION
LECTURES FOR 1915-1916


The Louis Clark Vanuxem Foundation of Princeton University

was established in 1912 with a bequest of $25,000 under the will of Louis Clark Vanuxem, of the Class of 1879. By direction of the executors of Mr. Vanuxem's estate, the income of the foundation is to be used for a series of public lectures delivered in Princeton annually, at least one half of which shall be on subjects of current scientific interest. The lectures are to be published and distributed among schools and libraries generally.

The following lectures have already been published or are in press:

1912-13 The Theory of Permutable Functions, by Vito Volterra

1913-14 Lectures delivered in connection with the dedication of the Graduate College of Princeton University by Emile Boutroux, Alois Riehl, A. D. Godley, and Arthur Shipley

1914-15 Romance, by Sir Walter Raleigh

1915-16 A Critique of the Theory of Evolution, by Thomas Hunt Morgan


LOUIS CLARK VANUXEM FOUNDATION