These Lectures, in their original form, were delivered at Geneva, and afterwards at Lausanne, before two auditories which together numbered about two thousand five hundred men. A Swiss Review published considerable portions of them, which had been taken down in short-hand, and on reading these portions, several persons, belonging to different countries, conceived the idea of translating the work when completed by the Author, and corrected for publication. Proof-sheets were accordingly sent to the translators as they came from the press: and thus this volume will appear pretty nearly at the same time in several of the languages of Europe.

The hearty kindness with which my fellow-countrymen received my words has been to me both a delight and an encouragement. The expressions of sympathy which have reached me from abroad allow me to hope that these pages, notwithstanding the deficiencies and imperfections of which I am keenly sensible, reflect some few of the rays of the truth which God has deposited on the earth, thereby to unite in the same faith and hope men of every tongue and every nation.

ERNEST NAVILLE.

Geneva, May, 1865.