The valley of Onondaga has a romance of beauty in its wild scenery, and as the home of the famous tribe of the red men of the forest-- the Onondagas--around whose council fires the chiefs and young warriors of the Six Nations assembled to consult on matters of great moment. It commences at the head of Onondaga Lake, having a broad surface where the main part of our city stands, and moderate hill-side boundaries, until we pass two miles south of the city bounds, where the bed of the basin begins to narrow away and the hills on either side to be more abrupt and higher. It continues to decrease in width, until it terminates against Tully Hill, a distance of fourteen miles from the lake. Its beauty of wild scenery is perhaps in greatest perfection in that part known as the Indian Reservation--still held by the Onondaga tribe--somewhat south of the centre of the valley. Two main roads lead up the valley, one at the base of the hills on either side; and riding along either of them in a pleasant day, an admirer of nature's wild grandeur has ample occasion of admiration. The gentle slope, rising way back and up as if touching the clouds, and the more abrupt and ragged, shrub-covered, not less high hills, miniature mountains, with every now and then a ravine down which the water leaps playfully along till it reaches the plateau below and into the little creek on its way to the ocean--is a landscape of beauty not easily described. Just now this valley is the scene of an excitement, in the finding of a supposed petrifaction of a human being--a giant. The point of interest is on the south side of the valley, opposite and just beyond the little village of Cardiff, in the town of Lafayette-- twelve miles from this city, on a farm belonging to Mr. William C. Newell. On Saturday last Mr. Newell thought to dig a well some six or seven rods east of his house, and a trifle south-east of his barn. The spot is probably thirty feet below the house, and the surface soil is a loose, half sand, half dark muck, the natural washing from the hills above. It is not more than twenty rods from the creek, the channel of which is thought to have been at or very near this spot many years ago. Mr. Newell and a hired man, in digging, had gone down but two and a half feet when something hard was struck, which was believed to be a stone. They thought but little of it at first, expecting to have to break it loose and pry it out. But throwing out a few more shovels of earth from its side, the feet of a man appeared. A few minutes more of labor exposed the legs to the calf; and now their interest being excited, they began to dig carefully around it, until the whole form of a man--petrified giant--was brought to view. The neighbors began to hear of what was found, and of course went at once to see.