T.Johnston, Esq., of New York, writes (March 23d) that he has made an arrangement for procuring minerals for me from this part of the Union.
_Scientific Subjects_ .-- Mr.McNabb writes (March 27th): "I deeply regret that so little attention is bestowed by our legislatures (State and National) on objects of such importance as those which engage your thoughts, while so much time, breath, and treasure are wasted on frivolous subjects and party objects.

How long must the patriot and philanthropist sigh for the termination of such driveling and delusion!" After a labor at my table of about fourteen weeks, the manuscript was all delivered to my printers; and I returned to New York, and took up my abode in my old quarters at 71 Courtland.

The work was brought out on the 20th of May, making an octavo volume of 419 pages, with six plates, a map, and engraved title-page.

Marks of the haste with which it was run through the press were manifest, and not a few typographical errors.
Nobody was more sensible of this than myself, and of the value that more time and attention would have imparted.

But the public received it with avidity, and the whole edition was disposed of in a short time.
Approbatory notices appeared in the principal papers and journals.