TO CORRESPONDENTS.—Condense your ideas into as brief space as possible, and write them out legibly, always remembering to add your name to the communication. Annonymous letters receive no attention at this office. If you have questions to ask, do it in as few words as possible, and if j ou have some invention to describe, come right to the business at the commencement of your letteT, and not fill up the best part of your sheet in marking apologies for having the presumption to address us. We are always willing to impart information if we have the kind solicited. FOREION SUBSCRIBERS.—Our Canada and Nova Sootia patrons are solicited to compete with our citizens for the valuable prizes offered on the next volume. [It is important that all who reside out of the States should remember to send 25 cents additional to the published rates for each yearly subscriber—that amount we are obliged to pre-pay on postage.] RECEIPTS.—When money is paid at the offii-e for subscriptions, a receipt for it will always begiven, but when subscribers remit their money by mail, they may consider the arrival of the first paper a bonafide acknowledgment of the receipt of their funds. PATENT LAWS, AND GOIDB TO INVENTORS.—We publish, and have for sale, the Patent Laws of the United States. The. pamphlet contains not only the laws but all information touching the rules and regulation of the Patent Office. Price 121-2 ots. peroopy. BINDING.—'We would suggest to those who deaire to have their volumes bound, that they had better seod their numbers to this office and have them executed in a uniform style with their previous volumes. Price of binding 75 cents. MISSINO NCMBBRS.—Subscribers who have failed to receive some of the numbers' during the year, can have them supplied by stating what numbers are missing at the time of remitting for the new volume. INFALLIBLE KULE.—It is an established rule of this oflice to stop sending the paper when the time for which it was pre-paid has expired, and the publishers will not deviate from that standing rule in any instance. BAOJC NUMBERS AND VOLUMES—In reply to many interrogatories as to what baok cumbers and volumes of the Scientific American oan be furnished, we make the followiag statement:—Of Volumes 1, 2 3 and 4—none. Of Vol. 6, all but six numbers, price, in sheets, $1; bound, $175. Of Volume 6, all; price in sheets, $2; bound, $2,76. Of Vol.7 all; price in sheets, $2; bound, $2,75. Of Vol. 8, all the back numbers subsequent to No. 27, but none previous. PATENT CLAIMS—Persons desiring the claims oi any invention 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 oopying. 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 engravings 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. 0IVB INTELLIGIBLE DIRHOTIONS—We often receive letters with money enclosed, requesting the papei sent or the amount of the enclosure but no name of State given, and often with the name of the post office also omitted. Persons should be careful to write their names plainly when they address publishers, and to name the post office at which they wish to receive their paper, and the State in whicl the post offioe is located. l?*The above chapter of variety we have inserted for the mutual benefit of our patrons and ourselves. If our subscribers will retain in mind the suggestions contained in the above paragraphs, thej will be likely to be benefltted thereby; besides they will save us much laluabls time and a good deal or perplexity.
This article was originally published with the title "A Chapter of Suggestions &C"