ndergo changes. My plan would be for you to travel over the
State, and make a complete mineralogical, and geological, and
statistical survey of it, which would probably take you a year or more.
In the mean time, I would devote all my leisure to the collection and
arrangement of such other materials as we should need in the compilation
of the work."

_Feb. 18th_. Professor Dewy writes, vindicating my views of the
Huttonian doctrines, respecting the formation of secondary rocks, which
he had doubted, on the first perusal of my memoir of the fossil tree
of Illinois.

_Feb. 20th_. Caleb Atwater, Esq., of Circleville, Ohio, the author of
the antiquarian papers in the first volume of _Archaeologiae Americana_,
writes on the occasion of my geological memoir. He completely confounds
the infiltrated specimen of an entire tree, in the external strata, and
of a recent age, which is prominently described in my paper, with
ordinary casts and impressions of organic remains in the elder secondary
rock column.

_Feb. 24th_. Mr. McNabb communicates further facts and discoveries of
the mineral wealth, resources, and prospects of Western New York and
Pennsylvania.

* * * * *

_Narrative Journal_.--Professor Silliman (March 5th) communicates an
extract of a letter to him from Daniel Wadsworth, Esq., of Hartford, to
whom he had loaned my _Narrative_.

"I have been very much entertained with the tour to the western lakes. I
think Mr. Schoolcraft writes in a most agreeable manner; there is such
an entire absence of affectation in all he says, as well as his manner
of saying it, that no one can help being exceedingly pleased, even if
the book had not in any other respect a great deal of merit. The whole
seems such real and such absolute matter of fact, that I feel as if I
had performed the journey with the traveller.

"All I regret about it is that it was not consistent with his plans to
tell us more of what might be considered the _domestic_ part of the
expedition, the character and conduct of those who were of the party,
their health, difficulties, opinions, and treatment of each other, &c.
&c. As his book was a sort of official work, I suppose he thought this
would not do, and I wish he now would give his friends (and let us be
amongst them) a manuscript of the particulars that are not for the
public. Mrs. W. has also been as much pleased as myself."

Under the date of March 22d, Sir Humphrey Davy, i