Abyssinia, surrounded by enemies, expands or contracts its boundaries with every victory or defeat; but, in general terms, it may be said that it is about equal in extent to Great Britain. It is bounded on the north by Sennaar and the great woods of the Shangalla; on the south it is hemmed in by various tribes of the Galla nations, which also approach its borders on the west and partly on the east, while the rest of its eastern frontier is formed by the Red Sea. Abyssinia has therefore been compared to a bow, of which the Shangalla tribes on the north form the string, and the various nations of the Galla the arch. It is, generally speaking, mountainous; or, to describe it more minutely, it is composed of groups and ranges of very high mountains, overlooking the plains and deep valleys which surround them.
Before it is possible to give a clear idea of the climate of this country, there are certain phenomena which it is necessary to describe. It is well known that, from Suez to Masuah, the ancient harbour of Abyssinia, and from thence to the Straits of Babelmandel, a chain of mountains runs nearly parallel to the western coast of the Red Sea. These mountains, to the north of Abyssinia, pass through the country of the Shepherds, and there separate vast districts, which, though exactly in the same latitude, have nevertheless a most remarkable difference in the period of their rains. Both countries are deluged with rain for six months in the year; but the wet seasons on the two sides of these mountains are diametrically opposite to each other. On the east side, or in the country which lies between the mountains and the Red Sea, it rains during the six months which constitute our winter in Europe; while on the opposite side it rains during the whole of our summer months. From the violence of these rains, and on account of the fly that accompanies them, either region becomes, for six months of the year, almost unfit for the habitation of man; while the country on the opposite side of the mountains is teeming with luxuriance, and basking under the rays of a prolific sun. The shepherds, or inhabitants of these adjoining territories, availing themselves of this singular dispensation of Providence, annually migrate from one side of the mountains to the other; so that, although one or the other country is always suffering from the rain and fly, the natives of both manage to enjoy a perpetual summer; and while their cattle are feeding, in the cool of the morning, on the most luxuriant pasture, and, during the burning sunshine of the day, are browsing on exuberant foliage, a mere geographical line divides them from a land deluged with a pouring rain, deserted by almost every living creature, and condemned to gloomy and cheerless solitude. It may easily be conceived that this wandering life of the shepherd creates predatory, pilfering habits; and the old Abyssinian proverb, "beware of the man who drinks two waters," agrees with our own experience, how badly men of roaming, unsettled dispositions are suited to the enjoyment of stationary, civilized life.