I thank you also for your memorandums about the quadrupeds in the Boston Museum as I see that our animal there may save me the trouble of going to the State of Maine for it. When I was last under the hospitable roof of our Friend Docr Shattuck, I saw in George's room a No. of the "Penny Magazine" in which there is a plate representing a family of Beavers at work, that reminded me greatly of what I have seen in the ponds of Indiana some thirty years ago, and which I should like to have for a few days to assist in part in the making of the background to my Drawing of these animals, drawn from the Individual you procured for me. I will take good care of the No. and will return it safely very soon. Should George Shattuck have forwarded that No. to Mr. B. of Baltimore, pray ask him to write to the later to send it to me as soon as convenient. If per chance you could procure for me a live _Hare in the Summer dress_ (It is pure white in winter) pray do so and do not mind the price or the cost of its conveyance to me. This animal is abundant in the northern portions of your State and is fully double the size of the common _Hare_ called the "Rabbit." With sincerest regards and kindest remembrances to all around you and our mutual Friends, believe [me] yours always JOHN J. AUDUBON. The "Parkman Wren" well mounted will soon be on your chimney mantle! The unique specimen of the little Wren, referred to in the postscript of this letter, had been discovered on the Columbia River by Dr. Townsend some years before, and though Audubon had described it in 1839, his figure of it had but just appeared; this was doubtless included, as Mr. Thayer remarks, in the parts of the octavo edition of _The Birds of America_, which Dr. Parkman distributed at Boston in the summer of this year. As an indication of the zeal and energy with which Audubon undertook his work on the quadrupeds, the following letter (dated "New York, August 15, 1841," and addressed to "W. O. Ayres,[183] Esq., Miller's Place, Suffolk county, Long Island, New York") will be read with interest: _Audubon to W. O. Ayres_ I am now closely engaged in conjunction with my friend the Revd. John Bachman—of Charleston, S. C., in the preparing of a work on the viviparous quadrupeds of North America, and I have already drawn about one hundred figures of these, including thirty-six species.