Lyell and Mr. Lowell soon arranged all preliminaries, and it was understood that Agassiz should begin his tour in the United States by a course of lectures in Boston before the Lowell Institute. A month or two before sailing he writes as follows to Mr. Lowell. PARIS, July 6, 1846. . . .Time is pressing, summer is running away, and I feel it a duty to write to you about the contemplated lectures, that you may not be uncertain about them. So far as the subject is concerned, I am quite ready; all the necessary illustrations are also completed, and if I am not mistaken they must by this time be in your hands . . .I understand from Mr. Lyell that you wish me to lecture in October. For this also I am quite prepared, as I shall, immediately after my arrival in Boston, devote all my time to the consideration of my course. If a later date should suit your plans better, I have no objection to conform to any of your arrangements, as I shall at all events pass the whole winter on the shores of the Atlantic, and be everywhere in reach of Boston in a very short time. . .With your approbation, I would give to my course the title of "Lectures on the Plan of the Creation, especially in the Animal Kingdom." Thus was Agassiz introduced to the institution under whose auspices he first made acquaintance with his American audiences. There he became a familiar presence during more than a quarter of a century. The enthusiastic greeting accorded to him, as a stranger whose reputation had preceded him, ripened with years into an affectionate welcome from friends and fellow-citizens, whenever he appeared on the platform. In the director of the institution, Mr. John A. Lowell, he found a friend upon whose sympathy and wise counsels he relied in all his after years. The cordial reception he met from him and his large family circle made him at once at home in a strange land.