[Elderhorst, Wm.]

New Harmony, Ind. July 14, 1858

Prof. E. L. Brush
New Haven, Conn.

Dear Sir

It has afforded me a great satisfaction to hear that you have made use of my little Manual of slow-pipe-analytical work in your class. Your mind letter of June 12th, I received only yesterday, owing to my absence from New Harmony, otherwise I would have been acknowledged recipient of your favor.

I am sure that you had difficulty in procuring copies for your pupils, but owing to Putnam's suspension I had to take all the copies which were left, from him and place them into the hands of some other bookseller.

I suppose Wiley & Halsted in New York have some 30 or 40 on hand. The M.S. of a second edition is ready, and I hope to see it published in fall.

[Elderhorst, William]

I Croh N.Y. Apr. 9. 1940

Dear Sir

I forwarded by yesterday's mail a copy of the 2nd edition of my "Manual of Blowpipe-Analyst-to," to your address. I hope you may be pleased with the additions, and that it may be serviceable to your students.

My publisher being desirous to obtain the opinions of some competent gentlemen about the book, in order to insert them into a circular to be issued by him, I should feel greatly obliged if you would favor me with a few lines expressing your views about the merits or demerits of the book.

You will receive in a few days 25 copies from the publisher, each retailed at 6 cents per copy.