2508924825

®hc JSricntific guttmeatt. 125

THE CHEAPEST MODĘ OF KTRODDCING IRYESTIOKS.

LWENTORS \ND CONSTRUCTORS OF NEW AND

o**fal ContrU-ance* or Machiny    whatever kłód. can have (hłir

lnrenlioos llluttrated and deacribed In the oolumn* of tbe SCIEN. TIFIC AMERICAN on paymcnt of a reatonablc charge for the en-jtrarinc.

No charge U mado for the publkatlon, and the cut* are furnlihed to the party for who«n they are e\ccuted u r-oon u they have been u*e<l. We wUh It undrrfttood, bowcrer, chat no *ocond-hAnO or poor cngrarinr*, tucli aa palenice* often gct cxecuted by Inea-pertenced artbta for prlntlng cirenlat> and handbitl* from, can be tdmltted Into the** pace*. We al«o rv«*rve the right to accept or rr.iwt *ucb *ub>et* aa are prtaented for publkatton. It U not nr dctire to receire orderu for cngrarlog and publlshtng any bul icood Inrentiona or Machinę*, and mich a* do not mcci onr apprcb* t łon In thU mpect, we nhall dcdlne to publhh.

For farther farttcubr* addree*—

MUNN & CO..

PaWWem of the 8CIBNTIFIC AMERICAN.

No. 37 Parć Kow, New York City

T A. FAY A CO.,

O •    CINCINNATI. OHIO.

Pateotee* and Mnnuiacturrra of allktod ot PATENT WOOD* WORK ING MACHINERY of the lateat and mott approve«l deacriptaoo. partleularlr deautnfd for

Nary Yard*    8aah, Bllnd and Door.

hblp Yardk,    Wheel, Fclly and Spoke,

Rallroad.    Matę and Barrel.

flar and    ShSnglc and Lath.

Affrittiltural 8hop%    Planing and Rem win *,

Mi Ha, Ac

War ran D*d rapertor toanv m uae. Seod for Clreular*.

Kor further part jCuLira addrex«    J. A. KAY A CO..

Uorner John and Front atreet*.

Cindnnatl, Ohio,

W ho are l>4 only manufacturer^ of J. A Fav A Ca'« Patent Wood-Worklng Machinery In the UoRod Statea.    3 ly

OIL! OIL ! OIL

Kor lfcllrowd*. Słeamers *vd for machinery and Bu min*. PEANEM Imt.roY^S Kncrinc Sljmai, and Car O Ba. uwtor*ed and re commeoded by the tiigheał authr.ritY m the United Kate* and Ku ropę. ThU Ob poa%eiiiea ąualltłe* rttally r«dwntUI for lutrlcatln* and burom*, and found In no other oll It Uorfered to the publk upon t be mo<t r«babie, thorough. and prąciIcal te*t. Our mon akilllul en*ineerx aml machlnbt* pronenmee It puperlor to and cheaper than any other. and tl»e onb* oll that U In allcaww rełsable aml will not rum, Th***' Nelentlrtc A merlom.” a^ter »* vcral teat*, pronuuncea it *• wperlor toany otlK-r they havo u*ed for maehlnere." Kor »a!e only bł-the Ineentor and Manufacturcr. K. Ś. PIANE. No. 61 and 63 Main atreet. Buflalo, N Y

N. B.—Rellable order** fllled for any part of tł»* worłd. Hf

A YALUABLE WORK FOR INTENTOK* PATF.NTEE8 AND NANEFACTERERh.

The publubera of tho Scikwtttic Amkricaw saea 'uai pc-pared wtUi much care. a pamphlet of tuTannatlon aoou Patent* and the Patent Lawa, whkh oaight to be in the handn of ever>- itieentor and patenteo. and al*o of manufacturer* who v/e pr.tc. ted Inrentlona. The ebaracter of thla uaeful work win be better onckrotood after read-Ing the fotlowing aynopela of Itacontenu :—

The completc Patent law Amendment A et of 1H61—Practlcal lo -atructlona to Ineentora, how to obtaln Lettcm Patent, alao about Mr*le.a-I>erign*--Cave.UA—Trade mark/*—Awłgnment^-Kerenuc Ta* —hxUn*ion*— I nterference*— Infrlngcmenta—AppeaM—Re-.wtuea of Dęfectlre Patent*-Yalldlty of Katęnta-Abandooment of Inrentloot

•"Bort Modę of Introdnciog them-Imoortance of the SpecHkatloo

—WhoareenUOed to Patenta-What will prerent the grantIng o4 a Patent— Patenta In Canadaand Kurop< an Pateota—Schedule of Patent r«*ea ; alfo a rariety 04 mlaoetlaneou* Itema on patent law que« tlona.

It haa been tho deaign of tbo publluhera to not oolv fuml«h. In oon yenlent forp for p».^erraGoo. a aynop*la of he Patwct I^iw and PHAcnCR,but to anuwer a great rariety of gueationa wh»ch haro been put to theen from Ume to tlmo durlng their pmcttce of upwardt oc    v~w*. whkh rerllea are not aooeanlbk In any other form.

The pubUaher* will promptjy forward the pamnhUt hy mail, on rcceił t 01 i4a centa In poatage rtaroro.

Addrej* MUNN A CD., PuNUhers of the Sctismno Ahixica.\, No. V Park Row New York.

PATENT ENCHANGE.-ESTABLISHED FOR THE

conecnlcnce of lNVKSYOIł$ and BnuNKS* MSN. Gontu* and Enterprise. We make the łntroductlon nd*.łeof PatenUour *tudv and profewlon. Terma «ieeo up*u %p. 'kawon. T. C. ORWKO A CO.. Z2t Broadway, New York    25 tf

Del lit. inst. fngineering school, at

Franklin. Delaware Ca. N. V.— .\dvantagc*—Kuli set bc*t En*

finto ring in.trunwnt*. wo " $ł.'CU; laboratoiy. flttid up trith

urnaeo. >tlll. i»a1.«r>o\ Ac : fuli *ct RMjtents fur iuul>»U; luli *et Minerał Specl/nen.*; $ .iW pay* Board, Book* and lultion one year. O BO. W. Jonesa. 31. i Yale CołA Prof Mailu lnrtr.ln Ktc:d Work. W. A. ANTHONY. B. Pb. (YaleCoU Prof.Nat. set.. Inrtr. łn Draw. log    312*

PORTA RLE STEAM ENGINKS-COMBINING THE

m .\lnium ot erticlcncy. durablllty. andcconomy wlth the min. oiun.v«'weizht and prke. Theyare włdclyand farorably koown. «»ore than aw l>e*'n< In u*e. Ali wnrratitcd *-itl*faetorv or no **to. De*crlptive clrofar-*cnt on appheatton. Addrc** J. C. HOAT-oi A 1*0.. Lawrence. alaw.    3 tf

For SALE. nkwhurgii iron and brass

Foundery. Machinę and IlIaCkMiilth shop. Too'». Patiem' and che cntłre Ftoturo* i*rc «>ffcred lor *ale at a Ntrgaln, the proprletor wltlllM to htlre. AddreM J. II. C. PoaPOfTLe Bo\ No. M, New-burgh. N. Y    5 «•

M

ACHINIST8 WJIO ARE DESIROUS OF IMPROY-

I.VO their conditie" to life by enterlng the United State* Navy aa Kngineer*. at fi.ICH > /r year. can do *o wtthout fałlure. Addrea*. wlth two «tamp«. J. IIAKKIs. No. 353 North Tenth itrect, Phlbdel

phla. Pa.

R

ARE CII ANCE

FOR PARTIKS WISIIINO TO ENOAOK IN TUK MANUPAOTUIt-ING BUSINESS.—The HdrertLicr* harl.g hreo large tfttablithment* manufacturine Acncubural Machlner, woutd dl*p«>«- of om* at Rochester, N V.. on tery fatorabl*- terma. Owin^ to tl»<r sreat lo-crette In the ««ema«Mt for thU da-» of mach nery R make* morę bu*itie*% tlian tU** canattend U».

Fuli pirr lcn*ar< promutk c&ven by addrc*-nlnr P. O. Drawer. No. 76. Rochester. N. Y    6 P

T7D)R PATENT SCROLL* SAWS, RAILWAY CUT-

L TINO OPF SAWS, Splitt me Saw Tables and Arbom. Eduinj? Raw^. Ac . addm* J. A. KAY A CO.. Oinclooatk Ohto.    3 ly

PATENT OFFICE AND EVERY YARIETY OF

Worklnjr Mo«leD an*J Kxrverlment il .Machinery; ałun Pattcrn* of all klnd«. ma*W* be V. GIROUD a No 191 Ual* atreet, ortlce Dael on. SOlC' A WooD<y. No. 2 O RrovUny.    5 «•

Tuk (i*lat AKKKic.tN iioc-rav>h a 0*nct. i

Hcadouartera Moawsos, Iti.. i

TO FARMERS ENGAGED IN GROWING HOGS OR

Wool. and aUo dealera In Hardw are, w ho will aeml me their D»me< and Poaf otfftce adlre »* I will foeward mv dcscrlptlee rana. phleu or clroilara free. cont aintne Information of ealue to them AddrMfl    K KU BEN IIURD.

6 3*    Mormon. \\liit*Aide C*x. III.

For sale.—one pair of enginbs, bo.in. borę,

54dn.atioke.bulH by J P. NortK«. PhlladetpMa. In perfect order; one 22by cO m. botli: cno bo run lAcH or to* prewure; one 17>* by 42; one 16 by 36 all łn completo or^er. Cylinder and Flue Bolient tor sale to miH.

Machinery for Sawin*. Cuttmc and Rubhlne Marble. at

SHINE

6 3*

E

DAYIS^ MACJIINKRY YARD.

No*, 17 ur>d 19 Morrt* »treet. J C.

VERY SAWYER AND LUM BERMAN SHOULD

JL_4 haee the Sawrer'* Comptnlon. a copy of which will be *ent by return mali on nyMptof $1 Ul by the Mibacrtbef. S. K. PARSONs, Wille* Biire. I.u/.erne Co , Pa.    6 3*

--- ^    ---, i    —    -    --------- —

VALUABLE DISCOVERY.— IT HAS BEEN ASCER-

tained Chat Katlrcad Tlen roay be p?e*erTed for a eTeat lencth of tl»o by ti*e aiiplo .l‘on io them of a compo*ltlon dl*corered nnd lateiy catented by rf. S. FORKMAN. ArchUect and Bmlder. at Mor rbon, III.    6 10*

FOR SALE.—STATE RIGHTS OF THE W HOLE OF

a valuaMe Patent |u*t *roni«*d for a ne« materiał for MI1U for flrlndme all klnd* ot Graln.⁴ v,iu-e. Spkea. Ac. Addr^aaC. RANDS, care Mr. Brldcena. No. Ih9 William *treej. New York. 6 4*

INCRCSTATIONS. WINANSS CHEMICALS. A CER-tam prot\*ntlon of acales. satUfactorlly u*ed h year*. Coat about lUcentad dly. II. N. WINANS, Na II Wali «t.. N. Y. 6 4*

HANCOCK’8 PATENT STEAM BLOWER COMBINES

all tlić adtatUaicow ot th< Fan BlOwer. and requlrewtery llttle power to operate U It i* na-e!«**>» occupdea no ipace avaltab>e for other purpowa, requtre» n*i cmneenon wlth any motor other than a boi.rr. and De atearn u>ed »i i»roduce the bhut U utillxed Sn the furnace to promotc combuption.

Foraaleby tbe Asrent*. P. W. BACON A CO., 84 John rtreet. New York    6 !*•

STEAM BOILERS SET ON THE BEST PRINCIPLE

to «a«e fue'.; Imurored Kirę Front» a^d IrdeiTuctlble Grate Har* for all klnda ct boilera. JOSEPH .4. Mil.DER. C. R, No. ao Broa*Sway.    5 6*

Giroi;d\s PATENT MaRINF clocksand rrgis-

TERS. Abo manufne:or -*i v.iterGajcea Steam and Yacnuoi G.iKO* and Bra»n Work In ceuei . manufactory.

V. CIRmUD A co.. No. 191 u<xii Mreet.

5 4*    OfTke DaelMin. Nule* A Woolaey. No *29 Broadway.

ITFS CELEBRATED STEAM GONG CAN BE heardthlrty mile*. The beat klnd ofanalarm. Itacou $U0 lncludlnr va ve.

NTBAM B01LKR FKEDER 00^ WorceMer, Maa*., are^beon^y manufacturere.    4 5*

VGENTS WANTED-TO SKLL AN ARTICLE

needed In wtry fnm ly. Will par from 8'^ to $125 per montb. Kor partlculan* nddre**    W. S. HILD.

6 5*    _ Mi»nch»§t*T. N II.

4 NALYSIS.-LODI LABOUATORY- IS PREPARED to *lve anaUłl* of Ores Minerał*. Uomenercla! Artlclc*. Ac., on the»1ioite«t notkę.

Office No. !56Chamber* *treet. N. Y.    ®

\1 ILL STONK DRESSING DIAMONDS SET IN

1*1 Patent Krotretor and Guide.—For *ale by JOHN DICKINSON. Pateotee and Sol* Mnnufactorcr and Importer of DUmonJt for all Mecłianlca I puipo5ft\ .\Jeo. Manufacturcr of Glazler** Diamond*. No. 64 Nii-r-au Mrootl New York4*lt*. Old Diunomb N B — Nend y^Ugo atamp loy De«rlj'tlvf ^'lrcule»- tt the Dre*wr. 4 It*

H^OR SALE. THE ENTIRE RIGHT TO 8C0FIELIPS

Scw łn* Work-lłOlter. t|lu*irated In N«. 26 Vol. XI.. SCIKNTiric Akkkican Sample wlth fuli partlcolar<«acnt by mail *>n recelnt of two Marnp-* for return po«tuge. AdlrtB Ił. O. 8O0PIRLD. Nvrth Ntamford. Conn    7 4*

DL. HARRIS A CO.. SPRINGFIELD, MASS., • Manufacturer* nf Maehlnł*t^*Tr»ol*. Stearo and Power Pump* Brldse*. Turn Table*. Holi*. Kie.

7 10»    W. H. IIUKRALL. Fuperlntendent.

"TI/ILLIAM MASON, MANUFACTURER OF PATENT

▼ V Prlctlon Clutchet an ' Machlnere, ha* aold hU Interea In the Machinę Shop, Tool* and stock to V. Wm. Ma«on. who fettlea and contlnur* the budowa. All lavora will receireprompt atrentlon

V. WM. MASON.

7 !•    ProTblencc. R. I.

TO RAILROAD COS. AND MACIUNISTS. FOR

^ALR-Two Phnera ?4 In. r^iaarc by 6 ft Notrheap. hut flret-rh'« t*v«b. well flnU>>ed. atro.ig and heaey; ean l»c uelircted at mee. Kour !w.ivy. 3A..|n UthH, IS ft. aheara. partlaCe conipleted And not yet aold. Addrea* E. A A. BKTTS. Tool Bulldcr*. Wllmlng ton. Del.    7 4*

HARTMANN Sc LAIST, 84 SYCAMORE STREET,

ttneinnatł. Ohio, Manufacturer* of Glyeerine for Ga* Mctera. Ilydraullc J*reaae.«. etc. Warraoted not to freeie at the loweat temperatura. Glyeerine for Perf u mer k Tobacco Manufacturer*. Prlnt-en, Druggiata etc. A*etlc AcU, Acetate of Ume. Acefate of Sooa at the loweat prkea PAUL BALLUFP, Agent. 95 Malden Lane.

2 16*

WATER WHBELS—THOSE WHO WISH TO CET

TT a Ureo amount of power from a amall ęuantk, cf water nhould u«e Warren’* Tutblne Water Wheel- For clrculara Ae., ad-dre^* A. WARREN. Agent, American Water Whoert Company.31 Kxchangę atreet. Boston, Mae*.    2 li*

FOR SALE—STATE OR COUNTY RIGHTS OF THE

American Mower. he be«t Mower In u*e, combloeaall the Im-

irovemenia which make a perfect Mower. WM. VAN ANDEN, *oughkeepale, N. Y.    6 3^#

PAGF/S PATENT PERPETUAL DRAW BRTCK AND

Llrne Klin. Brlck Klin will buro 40.00) No. I Brlck per day. wlth four cord* of wood or two tuna of *oft e<aL Limę Klin will burn 3J> bnaheH wlth three cord* <f wood cr two tun» cf coal Ad drea* C. D. PAGE, UleeeUnd. Ohio.    18*

| M PORT A NT TO HORSE RAKE MANUFACTURERS.

1    —The «ub<crlbera ykldlng to the »o!lcitation* of many mana

fiCtorer* of Ilono Kakc*. havc at length comnle-ed arrangement# (or furnlthłng Rake Tceth of any *hape detłreo. bent and tempered to any patiem. We have no heaitatton In aw.11 ring Rake Manufac-turen tlat tley can now rely upoo procuring from u»good rellable Teoth. of very auperłor temper, and In any quantUv, on »hort notkę. We furnith. In addltlon to the ordlnary Mm* of Itound Teeth.

prouCt Patent Shape Teeth. for which we have the exclo*lre nght Ol manufacture. We annex I.Ut of Bite*:—7-16 loch Round, No. I: IM* loch Round, No. 2; 3*8 Inch Round. No. 3; Sprouf* Patent. No. I: SprOuU* Patent. No. 2; SprouCa Patent. .No. 3. Extra prlce for all Teeth orer 5 feet In length. *l5W. when a coli or spring U ma>Ie on the tooth. Noa. I. 2 and 3. SprouU* Patent, correapond for •treneth wlth tho noi4 Noa o« Round. and are much llghter and morę c!a>tk. 4)ur Teeth are all teated before learlng the shop. and wmrrantedto boa perfect aprsig temper. rart>e« orderlng Teeth ahouldbe carelul to #end pattern. t\e aUo furnlih Hake Steel to order, cut to kngtłi*. at łowert market rak*. Term* Cash HUSSKY. WKLLBA CO., nttaburgh. Pa., Manufacturew cf tn-rt Rcdikd and all descrlptlon* of Cast-steel.

1 13*

\T^rANTED—FOR THE STATES OF MASSACHU-

Y. aetfa. Rhode Dland aml Connecticut. Manufacturcr* nf the One-hor»e Mu w er, ayn*a CThlef,** No. 4, whlrh I* pcrfeetly adapfed to the wanta of New Knrland Farmer*. I ha* double drlvli>* wheeb. fletHle flnfcr bar. and fokllnc enttlng apparatu*. I* capa* ble 01 cuttlne wlth n medium-«lre<J ho»xe. In a workmnnTtke mail ner. tno third* a*¹ m ny ner*** of *ra*« per dar a* the t*c*t two-hor*e mower. II** b.-en iocee*afidly ln*ri>duced m Malne and New ll*mp*hirc, ^}, Me r*. Wondman A Burnham, of Biddeford. Malne. who manufaciure for thoae State*.

The tw«-Ik r*e u ower, - Cayuga Chief. Junior.” or No. 3, can aUo be manu;\ctu:»d In connection wlth the one horae for the aame ter-ritori, If d-Mdrtd. Addr*m

C. WIIFELER. Jr .

6 4*    lViplar Rldge. Cayuga County, N. Y.

T/OR SALE— REED*S 1MPROYKD IIAY-RIGGING

i State andl<**untv Klorhta. Illunrated in No. 6. Vot MI. Ad drc*< REKI) A CIIESKBKO. Grand Ratudl. M«Ch.    66*

MACH!NIS1» TOOUS, ENGINE LATH ES. HANI) Lathe*. Ptancra. Uprtghl DrllU etc . of beat materiał and #u-prrlor workmanaMn. manuiaetured and (or *ale by WM. M. 1IAWKS A CO., Fali 141 ver. Maasi.    2S !!•

$2,000

Tm iYefłdent*, Ca

A YEAR MADĘ BY ANY ONE WITII $15. Stencll Tool*. No eapcrlenoe nece*aary. !a*hler*and Trea*urer* •'f three E3nk* indortt the clrcuŁar. Sent frw vith ‘amplo. Addrt** The • rnerkan Stencll rool Work*, Sprtngf.etd. Vt.    25 tf

(jr

¹ RINDST0NE8 OF THE BEST Q U ALITY MANU-

KACTURED lor Mechank*. Rallroad Sh^pa. Manufacturer*

and the lrude. Ohto.

Addreaa order* to F. 31. STEARNS A CO.,

Hcroa. I tf*

STEAM AND W* A TER GAG ES* SCOTCH GLASS

Tubo*. I,ow Water Detectora. Ratcher Drilla, Stocka and Dlea, Bo*kr Fełtlng JOHN ASHCROKT,50 John Mrcet. New York. I II*

FOR I>A NI ELS'S PLANING MACHINES, CAR MOR.

* ISI\G. Bo-ln* Machines. Car Tenoning Machlnea. Car Planlne and Beadln* Machlnea. Ae^ addrex* J. A. KAY A CO„ Clnclnnatl,

Obie.    31.

ii"'! >!^    WOODWORTH PATENT PLANING AND

MATCIHNG MACHINES. Patent Sidln* and Reaawlng Ma Chlnea addre«s J. A. FAY A CO.. Cłncmnatl. Ohio.    3 ly

4 IR PPM 1*8 AND PORTA BLE STEAM ENGINBS,

of

ry. for

>f beat ou litr. for Oll Weil*; and alt other klnd* of machinę-*a)e by & C. HILLS, 12 PUtt ftreet, New York.    d

TpOR PATENT STAVE AND BARREL MACHINERY

±. Slilugle MncMnea, Etc., addrea*    J. A. FAY A CO.,

ibtf    Clnclnnatl, Ohio.

STEAM ENGINBS, MACHINERY', ETC—STEAM KN-

OIKIN from 10 to L50*hor»e power wlth link motlon. varu»błecut-off, Of the mo*t approred con*tnłctlon; aUo Utl»e*. mill-gearln*. •hallln*, han*er*.e.c.. and Machinery In genem!. AiWfM 4 XII., ly    M. A T. SAULT, New Haven. Conn.

rECK’S PATENT DROP PRE^S M AND FACTU REI)

m all iu y.arietie*, by M. AC. PECK A CO.. Foundera and Macblntita. New Haren, Conn.    Yd.XI. 16 26*

AMESSIKURS LKS INTENTEURS. —a VIS IMPORT-

ANT I^ealnrenteuranon farolller* avec U langue Anglaloe. ei qul pr.-f--rera lent dou* co menu nlouer kura ineentlon* rn hYanęaU,

Seuren* noua addrwMer dam leur Ungue rutale. Kntuyei noua ud ea*m et une deacriptlon concł*e pour notre eiamen. Toutea eom-muntcatkin* teront reeuea en coo^o^noe.    *rH}ł jt CO.

Hclentific American offic*. No. 37Park-Row, New York.

alamy stock photo

/■ANTED—$125 A MONTH! AGENTS EVERY'-

wliere. to tntroduce the oewShaw A Clark $16 Family Sewlng Machinę, the only Iow yrlce machino In the country whkh U ll-cen*cd by Gmver A Baker. Whceter A WlUon. Ilowr, Moger A Co., aixl BacheMer. Batory and cxpen«c*. or large commltsion* allowed. AB other Machinę* no w so>d for lew than Mt| «Jollar* ruch are Io-f ringement*. and the aeller and u*er UaMe. Illustrated clrculars *ent iree. Addrea*

23 12*    SHAW A CLARK, Iddeford. Malne.

I RON PLANER8, ENGINE LATHE8, DBILL8 AND

JL other machlolsk* toob> of *u pertorq wal Ity, on ha od and flnish-ing. for sale Iow. For descrłntion and prke addrfwa NEW BATEM MANUPAfTTURINO COMPANY. New Haren.Conn.    Uf

I^OR SALE—ONE FLUE BOJLER, 30 FEET LONG

by 45 ioebea dlameter. wlth two 14-inch return flues, includlng ooiler iront. bonrwt. płpes. ulw*, etc , a»l comnlcte; ha* been In u*e about flve year*,and lalngood condaton. Pleaso addrva* Plant'* Manufacturlng Company. New Haven. Conn.    Yo!.XI 21 tf

REYNOLDS¹ TURBINĘ WATER WHEELS—COM-

PETENT men areemployed to measurc strrama make plan*, and put in llutnea, wheela.andgcaring. TALUX>T A UNDKRHILL, No. I70 Broadway, New York.    1 XII.ly*

Cl7A a MONTH I WANT AOENTS EVKRYWHERE^

1^)4 U at$70a month. expen*e* pa id. to aed Flfteen Artk. a, tbe br*t *elłlrg ever offered. Kuli particular* free. Ad«lre*r OTI8 T. GARBY, Biddeford. Mnioe.    23 13*

G

ROVEK * BAKER‘S HIGHEST PKRMTOM F.I.A8-

TIC ftkeh Sewiog Machlnea. 495 Broadway. New York.

GUS AND PISTOL SCREWS.-COMSTOCK, LYON

A CO.. Manufacturers (Office 74 Bcekman rtreet. New York), arealway* prepared to (urnDh Gun and Pistol Screw* to tample. Screwt to (It tbe U. S. MuOcet, Sewlng Machinę Screw*. and Metal Screw* generally. of the beet ąuality, at ehort noucn.    16 25*

HOLSKE Sc KNEELAND, MODEL MAKERS. PAT-

KNT Office Modę U. Worklng Model*, and Ksperimental Ma-chinery, madę to order at 6Water atreel. ncar Jefferson rtreet, New York. Refer to Munn A Co, SCIBNTIFIC ARUUCAN Office, itf

E

LASTIC R0D8 FOR THE TEETH OF THE WHEEL-

Ilonie Rake. Addres* ELBEHT WHITE. Stamford. Conn. 6 4*

fT^rought iron pipę, globe valre* A eock*. plpetUtlngi. rteazn and W gaa-llttera’ toola John A*I»eroft, 5u Jołin »t, New York. 1 II

3ur $rad)tung fiir ti(utfd)( (frrinftcr.

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Sttumt SC &c._t

37 Jod Wcw. ^ch tjtf.

Ruf Ut Offkc »irl brulW $efptc4;eit.

Zdfrltftift *u botrits

Pif palfnt-JPfffłjf tor Dfrrinigtrn 5-taattn,

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Pretl 20 ffU.. per 25 ti«.