[Sidenote: 2. Map of the United Provinces.] The Himalayan mountains lie to the north; the hills of Central India to the south. The plain between them, raised only a little above the sea, is two hundred miles across, measured from the foot hills of the Himalayas to the first rise of the Central Indian hills. Two great rivers, the Ganges and the Jumna, emerge from Himalayan valleys, and traverse the plain southward, and presently southeastward, leaving between them a tongue of land, known in Hindustani as the Doab, or two waters. Mesopotamia, between the rivers Euphrates and Tigris in the Nearer East, signifies the same in the Greek language. The Jumna joins the Ganges near the southern limit of the plain, and in the angle of the confluence is the large city of Allahabad, the capital and seat of the Lieutenant-Governor of the United Provinces. Other great tributaries flow to the Ganges from more eastern parts of the Himalayas, and bending southeastward join the main river one after another. Five considerable cities focus the great population of the United Provinces—Allahabad, already mentioned, Cawnpore, Lucknow, Agra, and Benares. A hundred miles above Allahabad, on the right or south bank of the Ganges, is the city of Cawnpore, and on the opposite or northern bank extends the old Kingdom of Oudh, with Lucknow for its capital, situated some forty miles northeast of Cawnpore. Agra, which gives its name to all that part of the United Provinces which did not formerly belong to Oudh, is situated on the right or south bank of the Jumna, a hundred and fifty miles west of Lucknow. Eighty miles below Allahabad, on the north bank of the Ganges, is Benares, the most sacred city of the Hindus. All these distances between the cities of Agra, Cawnpore, Lucknow, Allahabad, and Benares, lie over the dead level of the plain, dusty, and like a desert in the dry season, but green and fertile after the rains. Scattered over the plain are innumerable villages, in which dwell nineteen out of twenty of the inhabitants of the joint Provinces. Lucknow is the largest of the cities, yet it has only a quarter of a million inhabitants. The United Provinces are the heart of India, the typical Indian land, safe from invasion from the north by reason of the Himalayan barrier and the desert plateau of Tibet; relatively inaccessible from the ocean, and not conquered by Britain until long after Bengal had become a Province of the East India Company; relatively safe also from northwestern invasion. Its people remain dominantly Hindu in their religion and customs, whereas the great province of the Punjab further northwestward has a majority of Musulmans. Southward is the plateau of Central India, comparatively thinly peopled.