J. M, of Pa—We do not know of any work devo- ; ted especially to distilling or, one which contains the information you want respecting alcohol. H, S B.j of N. Y.—Your lathe for turning irregular forms is constructed upon the same principle as the Blanchard patent ; J. M. Quinby, of Newark, is the assignee and manufacturer of this lathe. ? H Varner, Macon, Ga.—Wants a portable steam power for sawing wood. What is its cost? Its power ? How many cords of wood will it saw per day on an average? And how much help is required to work 1c ? Address as above. H. M. L, of Ohio—It is not patentable to make wii-dow eash, or any other article, of cast-iron, there Is nothing patentable in your proposed change G. ?. ?., of ?. Y.—We do not know of any such patent as j ou mention. J. ?. M., of Tenn.—It is very questionable about your obtaining a patent for your apparatus. We see no chince for a claim. J. R R , of Ohio.—We could Dot serjd allthe back numbers you wanted—this is the reason you have not received them W. S,ofOoio—We cannot give the Information required about the warning machine. ? S fer area Tat quantity of paent waning machine. W ?. ?, of ?. Y —We know nothing of the matter mentioned in your nota. If fraud has been use-, y ou hate legal remeiy in the Court of Equity. H L . of Gao — We cau farninn you no sutf ACtory ia/orin \tiuD ia regard the pointa of enquiry in your le ter. P-rhapa by ad-ire inir the editors of the Cotton Pinter a t Baltimore, you may Iwarn full particular. A H, of III—There is nothing new in your plan It in eenwntinlly the came ?? tue one described in oar Jast volume. We have seen a number of rooiiifi-Oa-tionsofit all of the rame character. J. D R,ofPa—Ltibt year a patent wa issued to Fraucis Wnlle, of Btbiehwm, Pa , fur a machine for making paper bags. We believe it is the only one in use. ? C ? j of Mais— lu Nms patent 1851, a spring is used in tbe frame It is nut elliptic. D. ? , of P.—Tuere is nothing paieatabe in yorr devices for operating window shutcerp. R. W , of ? ?—The cuccess of any undertaking depends upon its managemeut. A good improem-nt in ihe caaror orhe e jtiue might be m;iae pecuniarily valuable if tll. managed. J M G , of ?. ?.—Such a brake as you describe has beun in use many years, and several patents have been granted on modifirationK of ic. J A , ana W. ?. M., of Boston.—We tbink no patent can be obcM.it)rid on your device, fleam reeth which an-wer tbe same purple, are usea in Tuttee saw, aud in Koowles patent you will find a eimilar principle. F. V , of Mi li—Your subscription will not expire until no 26, nmt vorume J D ? , of Ala —Tbers is no system of pumps that we are aware of for sujplymg tanks of railroads. Tae situation of the plaa d-c-imiaea the kind of j paru ? most uitablH, A cbain pump is as good as any ; ijp some plaeee ; a d- ul rorce pjmj may ee required - in aacber piac. Tae yiimpo Gwynne (-ena-ifug)) is -iivery go jd one, aud may be suitable for your pur-pow. ED C , of Conn —We see no chance for a patent on your oil cup. Y mr a lertinement was too long, therefore we omctea tbe first part A si tig le eub-pcriprion to the Scientido American is not taken for I lefS than $2. ; A. F . of Ma s —It would scarcely mke any difference rherhur the gi ic bed has a iitary or a reoi-prOcatiog motion in a patentable point of view. We tbink. it would Dot J. P. C. nfN.Y.—Chapman has never ieeu&d any more numbers of his Drawing Book. H. G. R.. of Tnn.You have nothing new in your churn. It ia esnBDtUlly HimiUr to Chapins pj.ten% granted four year ince. Other references might be giren, bu it is thought unnecessary. J. . II, of Pa.—?? do notdiscoper any patentable novelty in your aontriance for transporting horae po wers, and ad else you not to apply. C. W. S. of Conn. —The reason, we believe, why the paper of which the Eoglsh books are composed i ; soniusb. ber.ter than those in our country for writing is owing to the fubstances of which tht two are composed being oifferent. Tha English hooks are mjstly printed on linen paper. 0. G., of Mich —You can furnish us with a rough pencil sketch of jour wheel, and we will give you an opinion. The Morgan wheel is not the one referred to, and we have no extra number to send of the one referred to. Money received on account of Patent Office busi-nessforthe week endingSaturday, March 5:— 0 B T., of Pa, $30; W H.. of ?. Y . $25; F ?., of ? Y , $40 ; C. P., of Meh , $20 ; F C G., of ? Y., $30; J L of ?. H , $50 ; T. F., of Ct., $30; S S. of N. Y., $67; C D. B., of Ot, $30; W. C, of Mass , $30 ; ? C . of ? Y , $35 ; ?. & S , of ? Y., $20 ; W W & Co , of Pa , $40; G G., of ? Y., $30; A. L , of ? J , $27 ; A. C , of Ct, $30 ; D ?, of Pa., $30 ; G ?. ? , of 111, $30 ; ? S. G , of ?. .T., $30 ; J I, V , of ?. ?.. $25; W. W W- of Ct, $30; ?, & I R , of III , $35; ?. ?., of R. I.. $25; T. 0. C , of ?. J, $25. Specifications and drawings belonging to parties with the following initials have been forwarded to the Patent Office during the week ending Saturday March 5 : — F. N., of N. Y. ; W C , of Mass.; W. W. & Co., of pa.; ?. L , of ? J ; J. I. V., of ?. Y.; T. 0. C, of N. flJ.; ?. ? , of ?, I. A Chapter of Suggestions, &c BACK NUMBERS AND VOLUMES—In reply to many interrogatories ae to what baok numbers and vo- lmes of the Scientific American can be furnished, we make the following statement —Of VolumeB 1, 2 and 3—none. Of Volume 4, about 20 Nos., price 50 cte. Of Volume 5, all but four numbers, price, in sheets, $1. Of Volume , all; price in sheets, $2; bound, $2,75 Of Vol. 7, all; price in sheets. $2; bound, $2,75 Of Vol. 8, none.