Irawadi
2 of the 7 encyclopedias on this shelf carry an entry for Irawadi. Both are reproduced below, so you can see where they agree and where they differ.
Aiton's Encyclopedia (1910)
e-ra-wa'di, the great river of eastern India. It rises in the eastern Himalayas, takes in general a southern course, and empties into the eastern end of the Bay of Bengal. It is navigable for small boats several hundred miles into the confines of China. Its upper course is swift and turbulent. The channel has in several places cut a narrow passage through the mountains. Mandalay, the capital of Burma, is situated at the lowest of these. It is really at the head of deep water navigation. The river has built new land extending for a distance of 140 miles into the Indian Bay of Bengal. There are several mouths. Rangun, the commercial metropolis of this section, one of the great cities of India, is situated on the eastern outlet. The lower portion of the Irawadi resembles the Nile and the Ganges in sluggishness of current and volume of water. The flood plain is enriched by annual overflow, and is one of the great fertile regions of the world. See India ; Ganges
Collier's New Encyclopedia (1921)
or IRRAWADDY (ir-awäd'i), the principal stream in Farther India, E. of the Brahmaputra. It rises in lat. 28° N., lon. 97° 30′ E.; and, directing its course W. S. W., passes the cities of Amarapura and Old Ava. In lat. 21° 45' it is joined from the N. W. by the Kyanquayn river; and in lat. 17° 50′ it divides into two branches, one of which, running to the S. W., passes the town of or Bassein; the other, running Persaim to the S. E., passes Rangoon. Among the banks of this river the greater part of the Burmese dominions is settled. Length, about 1,200 miles.