in the third vol. of Bonaparte’s continuation of Wilson, to be published in the ensuing autumn.  The circumstance of its being found in the Michigan Territory, is interesting on account of the few localities in which this bird has been found in our boundaries.  The three-toed woodpecker, Picus tridactylus, was equally unknown to Wilson, and the second volume of Bonaparte, now about to be issued, contains an elegant figure and history of this bird, which also inhabits the north of Europe and Asia.  The other birds and quadrupeds of your collection, though better known, were very interesting, as affording materials for the history of their geographical distribution, a subject now become exceedingly interesting.  The plover of the plain is the turnstone, strepsilus interpres.

“The large fish is one of the genus Amia, and Dr. Dekay is inclined to think it different from the A. caloa found in our southern rivers, but of much smaller size.  The tortoises belong to three species, viz., T. scabra, T. pieta, and T. serpentina.  It is the first information I have obtained of their inhabiting so far to the north-west.  There are also others found in your vicinity, which, if it would not be asking too much, I should be much pleased if you could obtain for the Lyceum.”

“I hope you will excuse me, if I take the liberty to recommend to you, to direct your observation more particularly to those birds which come to you in winter, from the north, or in any direction from beyond the United States territory.  It is among these that you may expect to find specimens new to our ornithology.

“The beautiful Fringilla, which you sent to us a few years since, is figured and described from your specimen, and in an elegant manner, in the volume just about to be published of Bonaparte’s work.”

Mr. G. Johnston of La Pointe, Lake Superior, writes:  “Since I had the honor of receiving a printed letter from the Lyceum of Natural History, I have been enabled to procure, at this place, two specimens of the jumping mouse.

“The history the Indians give of its habits is as follows:  It burrows under ground, and in summer lives on the bark of small trees.  It provides and lays up a store of corn, nuts, &c., for winter consumption.  It also climbs and lives in hollow parts of trees.  It is also possessed of a carnivorous habit, it being peculiarly fond of burrowing in old burying places, where it lives, principally on the corpse.  It is never seen in winter.”

There is something in the northern zoology besides the determination of species, which denotes a very minute care in preparing animals for the particular latitudes the several species are designed for, by protecting the legs and feet against the power of intense cold.  And the dispersion and migration of birds and quadrupeds are thus confined to general boundaries.  The fox, in high northern latitudes,