BACK NUMBERS AND VOLUMES—In reply to many interrogatories as to what back numbers and TO-lumes of the Scientific American can be furnished, we make the following statement --Of Volumes 1 2 3and4-none. Of Vol. 5, all but six numbers, price, in sheets, $1; bound, $175. Of Volume 6, all;price in sheets, $2; bound,$2,75. Of Vol. 7 all; price in sheets, $2; bound, $?,75. Of Vol. 8, all the back numbers subsequent to No. 27, but none previous. PATENT CLAIMS—Persona desiring the claims Of any inrention which has been patented within fourteen years, can obtain a copy by addressing a letter to this office-stating the name of the pa tentee, and enclosing one dollar as fee for copying. PATENTEES—Remember we are always willing to execute and publish engravings of your inventions, provided they are on interesting subjects, and have never appeared in any other publication. No en-gravings are inserted in our columns that have appeared in any other journal in this country, and we must be permitted to have the engraving executed to suit our own columns in size and style-Barely the expense of the engraving is charged by us, and the wood-cuts may be claimed by the inventor, and subsequently used to advantage in other journals. EIIVE INTELLIGIBLE DIRECTIONS—We often receive letters with money enclosed, requesting the paper sent for the amount of the enclosure, but no name of Stategiven, and often with the name of the post office also omitted. Persons should be careful to write their namesplainly when they addresspub-lishers, and to name the post office at which they wish to receive theirpaper, and the State in which the post office is located.
This article was originally published with the title "A Chapter of Suggestions, &C"