Indianapolis, Ind., Sept. 12. - The followiug is a synopsis of Gen. Harrison's letter of acceptance, which was given. to the press last nigbt : . The letter opens with an expression of gratitude for the confldenee shown in hira by his nomination, of a full sense of the responsibilities of his position, and an aeceptance of tbe honor offered. Ue then takes up the tariff question, and says that 110 matter what the Democratie position is ealled, its ultímate and logical purposes is free trade, such as England has. He congratulates the party upou the plain and emphatic tone of the Republican platform in dealing with this main question. and alao, upon the equally plain ineaning of Democratie position, as interpreted by the president's message and the utterances of the Democratie leaders in the debate on the Mills bill. The important point, he says, is not how long a step has been made in the directiou of free trade, but its direction, and he declares that the two parties are separated widely, not by a schedule, but by a principie. The argunieuts used by the Demoeracs that the unpaid duty has to be paid by the consumer as well as many millions more upou domestic goods whose prices are raised by the tariff, inevitably will lead to a revenue tariff which puts the duty upon those anieles of foreign manufacture that come in competitiou with home products. He does not propose to stop at this tune to refute this doctrine, but those, he says, who advance it, are students of maxims, and not of markets. In opposition to the Democratie view he says the Republicans hold that a tariff laid for proteotlon has a worthy object. The effect of lower rates upon th# public revenue is doubtful, but not the effect on the wages of American workmen; increased offerings of foreign foreign goods in our market must surely make less work and less wages for American workmen. The offer of recompense made by the Demócrata that if the wages are decreased their purchasing power will not be, is, he says in effect, a bird in the bush, and for this our workingmen have the opportunity to make choice of the bird in the hand. They now have better wagos and more eomfortable lives than those of any other tountry, and will decide for themselves whether they will exehange those advautages for the deeeptive promise of theoriaing reforms. With reference to the surplus he says it has been wasted by those who affect to deprécate it and that abmi.iant opportunity is offered for its reduction by buylng bouds and saving the interest thereof . The eontingency of repealing the internal revenue taxes in the present circumstances ís, he says, very remote, and a proper reduction of the revenucs does not necessitate that step. The Republicans will revise the tariff with a teady purpose always of protection to the industries of this country, and the repeal of the iuternal revenue luws need not enter at all into the plan. Of foreign immigration he says that we are no longer in need of immigration bureaus, and though proper immigrants will always be weieome those who come here uuder contract to perform services are not proper immigrante, and ebould beshut out. But it will make little dlllerence whether we have la ws to restrict this Bort of inumgmtion if we do not also protect our markets from the competitioa of the Old World; (lie effect will bo differout only ia degree, ii at all, whether the cheap labor be acros; the street or across the sea. Foreign competítion will soon reduce wages here to that point that foreign labor will have no iudueement te come here, and laws forbidding their importatiou ■h UI be needless. lispecially are laws to prevent the immuratiou of those who caa not as:.imilat themselves to our civilizaron necessary. The Chinese of this clnss and the oltjectious to their immiiratioD are so distinctive aud conclusivo as to have put the que tion beyoud the stage of argument Upou this poiut he expresses himself jus eutirelj in harmony with the Republican platform, aud would, iL eleeted, prornptly approve all necesarj legislatin U that end. The uext paragraph is devotei'. to the free bal lot questiou. The right of every citizen to cast and have counted oue free ballot, he says, musí not be questioned. Fraud and iutiinid".tion iD the end react upon those who produce tbem, and the refusal of the right of suffrage to any citizen is a violation of the civil compact of the government, whicu provides for the rule of majorities. The colorcd people do not ask special legislation, but they do ask to be made secure in their rights as citizi'ns. lic tueti declares his belief in national assistanoe to the commoQ schools, disappiwes the refusal of congress to admit territorios having all the requisitos of states into the Union, but declarea agaiust the admission of any territory in whicb a majority of the paople cherish institutious repugnant to our civilization as inconsistent with Eepublican form of government. líe indoráes the convention's declaration on the subject of trusts, and its advocacy of liberal pensions to the veterans of the war and their widows and orphas. He heartily indorses the dause in the platform relatine to cítII service reform and believes in its extensión; that fitness for office and not partisan considerations should be the qualiftcation, and fidelity and efficiency the ouly sure terms. The declaration in favor of virtue and temperanee is warmly indorsed, and he cloaes with the declaration that in our foreign relations the honor and dignity of the nation should be upheld, and ou.H relatious with the South American states made closer. He be lieves diplomacy to be oqual to the settlement ot the fisheries trouble, atid remarks that Canada can not expect more hospitality at our hands than she grants to us. In conclusión he says he is in entire agreement with the whole platform and sjibmits the declarations therein to the candid cónsideratioa of the people, believiug that Providence will lead the.ni to a wise couclusion.