In 1840 he went back to his home at Grun-dy's Hill in Nash-ville, hav-ing made a great name in Wash-ing-ton; not once did he lose his hold on the great ques-tions of the day, e-ven while here at home; and in 1845 he was chos-en pres-i-dent of the U-nit-ed States. While he was in of-fice, once more the U-nit-ed States was at war, and this war is known as the "Mex-i-can War." Its cause was this:-- Our peo-ple in Mex-i-co said that a big tract of land down there was theirs; the Mex-i-cans laid claim to it too; so Gen-er-al Tay-lor went down to see that our rights were looked af-ter. In the first fight he won, and lost but nine men; then he laid siege to their great cit-y of Mon-te-rey, and af-ter a hard fight took the town. That same year Gen-er-al Scott took the cit-y of Ve-ra Cruz; on Sep-tem-ber 14th, 1847, the A-mer-i-can troops took the cit-y of Mex-i-co, and the long war was at an end. In 1848 came the news of great gold mines in Cal-i-for-ni-a; and men went in such num-bers to this state that the "Gold Fe-ver of 1849" is a well known term to-day. While Polk was in the chair, three new states came in; and two of them were free states; that is, no slaves could be kept there; just at this time some men formed a band, and said that no slaves should be kept in an-y new state which the U-nit-ed States should gain. In 1849 Polk went home to Nash-ville, Ten-nes-see; he was on-ly fif-ty-eight years old; but was so worn out with years of work that he lived but a few months af-ter he got home; he died on the 15th of June, in the same year. ZACH-A-RY TAY-LOR. Zach-a-ry Tay-lor was born in Vir-gin-i-a, on No-vem-ber 24th, 1784; but when he was a small boy his fa-ther went to live in Ken-tuck-y; and long af-ter the rest of the land was at peace this state was the scene of such fierce fights with the In-di-ans that it was known as "The dark and blood-y ground." It is not strange that this boy, who lived at a time when wo-men as well as men had to know how to load and fire guns, so that they could help to keep the red men from their homes, should have grown up to be a brave, strong man. As a boy he went to good schools, but cared far more for the tales of war which his brave fa-ther told him than he did for his books; he did love books which told of great fights and brave men, and read all that he could get. When he was just of age he went to war, in place of a friend, and was so brave and fear-less that he soon took a high place.