'Mr. O'Connell wrote frnm London two letters to the men

id Mayo and Kilkenny," denotmeing thou conduct of their respective 31embers, Sir William Brabazon and Colonel Butler. The "head and front " of theee gentlemen's " offending." is their absence from the divieions on Sir James Graham'. Chime nettien and on that for the second reading of Lord Stenley'e Registratlen Bill. Colonel Fitzgibbon. too, he at- tacked on the same grounds, but not so directly as the 31emle•re for Mavo and Kilkenny. This is the fashion he which O'Connell deals with Sir Al'illiant Brabazon- " 31en it Alayo! I first turn to you. Will you suffer Sir Wiliiam Braba- ;wit to occupy the place of' Representative without doing the duty I tell you that Stanley has announced that the report of his relenting in his maiig- Lat.t Lodility to Ireland was ton..ily unfounded. Ile has p•tsitivelv Zeciared his intc:n ion to press the aet that is potentialiy to repeal the lim.ancipation law and Ihe Reform Bil'. .o.d to press it so early as ou the fah of May.

\V Le re is Sir William lirt' upon that day

‘• .\1•11 of Ma.tol I feel leen. to :,,forai you that the Torics will not give your Representative any p even it' ;on etc to 1oio,it 111am to ace, pi a pair. Nat-. the 1 ins::: to p. it' with him upon a recent occa,:on aro3,2 from a euaviction ef Is litusten■roici,„ a id a h.:tief that he would go away tiltlt Out a p ,ir ; which he accord:HA. did! " It is Lotto:F.0de for any in :in to hare a 1,--s excuse for hilsenee than Sir trabazon. ims an ample fortuite—he has no ti1tilIy. All I re- quire of you is, to imdit that while he reprc,ent, you he :hall be at his post to do his duty.

" 3Ien 0'f Mayo : I have not. and 1 Cal:Itt l;:wc, any one unworthy motive. in appeant g to von against your Representatie e. It is simply and singly IL sense of imblie d'uty flint at.; ..t.ts me. I have done my dety—do you do your:a" It;' ettriletn $ defeetd.m to circumstances iterle•fore 3nel 1 tura eve- to you, in the s'neetrost sort +Iv :Uhl the neat r njet. Tare ..ever was a man whom I esteennttl tome than

Colm , is a fliailv that :dual mueli of its hest di the

5:11.:•1 tha its!!. Ile was a friend to reli;ions 11• . . at a tink; e.l:,•;; the few of t 7;;. hi, class, oho even affected lilt.tv, ,t 00(1,

all/Of 1I5.:1 Oar lannICik It :1:1!::::111:to time

to appeal to you to nat;:d2. is misconattet. rut ;c:i to

Liam: in sell': I should Lt.,a this last ...‘;tr --a:: t rut hi ti t.te,1 the conuni.don of imuther (wino: his country. to I■ • At the time %then the .Mniistry v t , ,r. I

went into Brook', i i

almest universally t! ' ' 1;,.t.' •

cren 1,.;) r. Heal

• . S:1y.

inmost universa • : I could not 1,,iivve I, 01:■1 not it il'1‘11 auv I. that of Colonel Butler himself. I felt it my (bite aoptee." 1 t via. nature of the report. I sat down and U rote to a letter ,a,.' I ...stinetly stated to hint tile foul nature of the tratts.mtion in WM be in- volved. .1 expt,,,,,ed nie thm,,,0 vont:et', i that t:“.• faise—my coliviet ion tile" e t t,r112,- I 1.9: int in Ira;- ,t I ship : and I el cite''! eata..-st!, !... "0,11,1 tt, " reports so dero:Mory to i:it.•_::•!;■

my astonishlueut it Tee: it , to plc, a lett ter de , . . . as it is manifest, atimittin; Ith Inaced. there •-• • Ia .:1- consistent with any thin; else than the truth of t aeettsation

him. I refer to ow; kairta•SlItl:Ith.a:Ce Itrant that t.. C:1,1011:: Which he ought to publish to his constituents. e-lweially it' lie thinks any part of 11)y s:atentent OvurChargt-11.

" I it farther inquiries of others, anti foilltd proofs that the r:i■orts were

at least substantially tine, and that Colonel not having, got h' roll- ac he required, declined to vote.

" ,%1,11 of Kilkenny ! you hate a rir-llt 10 Call upon him to pubr.sli our cor- respondence upon that ottettolon. 1 teel ooneciene that 1 too have committed it Critnett.Tdr:4 Inland. in not ha, inz published that correspondence last year. If I had thole so. I think yon wouhl have taken cane to proem a eccolal aerc- bet It of ditty.

" Sten of 1.ilkennv that seroml dereliction has taken place. Colonel But 11;1, lett his Peril:intent:a,- duty. and returned to Ireland, at the momentous crisis which has just passed.. Ile went away long ;tfter the day for which :Sir James Craltatit's motion w tixed. lit' went away in a pair, and even trediet at WaS (as I believe) a about attempting to procure a pair; and the county of Kil- kenny, by Ids default, lost the benefit of one of her Representatives at a junc- ture of the very deepest interest to Ireland."

The Dublin Monitor. we observe, withholds it credence of the accu- sation against Colonel Butler—a man of hitherto unimpeachable politi- cal virtue—until he shall have had an opportunity of rebutting it.

Mr. O'Connell arrived in Dalin on Monday night, and on Tuesday addressed a large body of his constituents at the Corn Exchange. Ile repeated his attack on Lord Stanley's Registration Bill, and on Lord Stanley himself, in these terms of ridiculous extravagance-

" It was said that two Members who are Whigs refused to vote by reason of my speech ; and really there never was any thing more atrocious than that excuse. Stanley left his sick pa•ent on the point of death—he left the chamber of sorrow and sadness—he left that duty which he ought to be performing to- -wards his afflicted and d.t ing parent—he gave up the sacredness of sorrow, and all the gratification that sympathy has in it—he gave up all that is dear to the Lumen heart. awl hindiea to the human affections—he trampled under find the engins of his deceased relatives; and, Tverily believe,he would have trampled en their dual .1■.'es sooner titan refrain from, or stand back from, attacking lreland. Was eat what I said a fact ? Were they not dying? I merely hinted at it ; 1 said he ought to be elsewhere; and a ruffian sell, a malignant shout was raised against me, and I was interrupted and prevented from advo- cating the rights of Ireland by the groans and yells of a party that is opposed to every measure that is calks:late& to confer a benefit on the human race. They attacked me in this manner; and I confess I deserved it, for! did not make use a lanatiage sulliciently strong in speaking of his conduct. How- ever, 1 liave done it to-day ; and, what's more, I will do it again."

On Wednesday another meeting was held at the same place, and resolutions passed to form a new society, to be called " The National Association of Ireland for lull and prompt Justice or Repeal." It appears that the Duke of Leinster has declined to answer Mr. 'O'Connell's call to putt himself at the head of the new "national" movement.