The New Philadelphia Iron-clad Frigate

PlIlLADELPHIA, March 10. The ilisasirous news from Forfress Monroe h:is bad an aiarnriing effect upo'ö all classes of the peoplo, and lias awakened a renewed clamor for the rapid eonstruction of iron-clad vesseh. - The effect upon government ship builders a evidenced in the fact that, deepite the severe raio oftoday, the force at woik upon the new ïron-clad Kenriii!);ton frigatfl was largeJj increased, and operations pnshed forward with unWD.ntad rapidity. THU MYflMC riUGATE AND THE PIIILADELFIIIA FRIOATE COMHAKED The new frigate now beingconstrt;,cted at Mystio, Oonn., will weigh 8,000 tmis, and will be 1,000 tons burden. - She wil! draw not lees thnn ten nor more than Bisteen feet of will cnrry two eighty-pounaer pivot ntied guns, nnd tvelve ritled thu-tytwo poanders. Tho Philadelphia frigate will bo of 3,500 toDS burelen, wil] draw tiitoen feot of water, will bo 230 feet !i)[)i, sixty ftiüt beara, twenty-tive foet hold ; wrtj havotiireo deck, will carry severa! deck pivot gans, and sixteen additional guns td eleven inch bore - Siio wilt, theretore, be pot only the larseat ron-clad vessel in course of oonstrnctii)!), bsit oneof the largest ve&Rels in the American navy. ■JÏAJJty GONPLETION OB ÏHE PHILADELPIIIA .■it; cíate, The contractors and sliipbuildars ara straining every nervo to aooomplieh íliair labor at ao early day. At present the vessel is in the hands of tho joiners, who have laid the whple hul], keel a n tl buJwtvrks, and iiro at work upon the decks and interior arrangenuMits. She lies at the yard of öramp & Son, sub-contractnrs, towei-iüg above all the fiiiiToun.(Jinr bií'údipgi and renehing neaj'iy the ílcngtj.i ,oi a bloeit of Ihe fit y íi-ont. 'iiio yarti .s literally alive with eijii'-cnqii'iiUTs, umi a sioaur: tnïll has been erected cAos& beside hor to iaciliUito the nawing of tiinber ond the hoistihg of [)hinks, &c„ to tho ves SUAPjc oí IH1 i 1!i;ati;, TTuder no ciraumstances c:in a eliottriko tho hul] ol he now friste direct. Sim ia convex upon the whole exterior ;,art, and tliü balls of an adversary will 'lance harmleesly Irom her obliqne ! nor. ïfaesidea of the ship have an uile oí' liiirty 'legrees from three fet ibove the load litios, and she will be irmed vvilh a sburp iron bowsprit, to tri ke or pier ue preparatory to i Dg or eioking. Her rudder will also o protecieii, and her upper decks will ju Bituated undor the slope oi tbe curved and plated bulwarks, so that hecrew can be shcltered as under an nipregnable rooi. E IJION' AIIMOB. The iron platos whroh are to constitute tho armor of the vassel, are jeiug daily turned out from the -Bristol Forge Work.-i, on tho Delaware liiver, and irom oneoftho iron milis at Pittbbnrgh. A large quantity ofthem aro now in this city. They are filteen Feet long, Uverity-eight and a half inchos wido, and foiir :ind a huif inches thick. They will be bolted to the vesBel, buttlio bolts will notcomo Ihrough to the exterior surfuee of the platea - The platea will be connected by tongues cf'ron iitting in grooves, the groovod platea ettornatiog wich the tongued platos. The wholo weight of the iron casting will be Keven hundred and filty tons. The haaviest plute yat eoinpleled wdghs six thounaod Dine hundred and cighty-eight pounds, thü ightest plate sis thousand two liundred and forty-eighty pounds. Upwaxda oftwo hundred pintos will equip thfl whole vessol. Out) hundred tnen alone aro working on thi.s iron armor, and one bundred and forty toas oí lioal a week aïo consarned at the {urges. The plates encasiri.tr the will t'Xtend eight feet boyond the wooden huil. There wil] ba no bolts, angles, prnjeütions or ceeviees upon tho euriace of the armor when joioed to tht huil. " MirCaiKBBT, SPEED AND CREW. The frigate .will have two powerful engines and ooe large brasa propeller wheel, four boilers and a -" blower," or second smoke staek. She will travel at the rate of ten knots an hoor, and will carry a crew oí ono hundred and fifty tr.en. Her mauhinery is being constructed by Mr. O. E Wood, Uhief Engineer, and Henry Hoover, Constructor at the Navy-Yard. The platea vvere designad by J. P. Morris & Oo., and the boiler makers and prirnary contractors are lierrick & Sons.