The History of Sumatra | Page 4

and 1784, it would long since have been prepared for the public eye had not the duties of an official situation occupied for many years the whole of my attention. During that period, however, I received from my friends abroad various useful, and, to me at least, interesting communications which have enabled me to correct some inaccuracies, to supply deficiencies, and to augment the general mass of information on the subject of an island still but imperfectly explored. To incorporate these new materials requiring that many liberties should be taken with the original contexture of the work, I became the less scrupulous of making further alterations wherever I thought they could be introduced with advantage. The branch of natural history in particular I trust will be found to have received much improvement, and I feel happy to have had it in my power to illustrate several of the more interesting productions of the vegetable and animal kingdoms by engravings executed from time to time as the drawings were procured, and which are intended to accompany the volume in a separate atlas.
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THE HISTORY OF SUMATRA.
CHAPTER 1.
SITUATION. NAME. GENERAL DESCRIPTION OF THE COUNTRY, ITS MOUNTAINS, LAKES, AND RIVERS. AIR AND METEORS. MONSOONS, AND LAND AND SEA-BREEZES. MINERALS AND FOSSILS. VOLCANOES. EARTHQUAKES. SURFS AND TIDES.
If antiquity holds up to us some models, in different arts and sciences, which have been found inimitable, the moderns, on the other hand, have carried their inventions and improvements, in a variety of instances, to an extent and a degree of perfection of which the former could entertain no ideas. Among those discoveries in which we have stepped so far beyond our masters there is none more striking, or more eminently useful, than the means which the ingenuity of some, and the experience of others, have taught mankind, of determining with certainty and precision the relative situation of the various countries of the earth. What was formerly the subject of mere conjecture, or at best of vague and arbitrary computation, is now the clear result of settled rule, founded upon principles demonstratively just. It only remains for the liberality of princes and states, and the persevering industry of navigators and travellers, to effect the application of these means to their proper end, by continuing to ascertain the unknown and uncertain positions of all the parts of the world, which the barriers of nature will allow the skill and industry of man to approach.
SITUATION OF THE ISLAND.
Sumatra, the subject of the present work, is an extensive island in the East Indies, the most western of those which may be termed the Malayan Archipelago, and constituting its boundary on that side.
LATITUDE.
The equator divides it obliquely, its general direction being north-west and south-east, into almost equal parts; the one extremity lying in five degrees thirty-three minutes north, and the other in five degrees fifty-six minutes south latitude. In respect to relative position its northern point stretches into the Bay of Bengal; its south-west coast is exposed to the great Indian Ocean; towards the south it is separated by the Straits of Sunda from the island of Java; on the east by the commencement of the Eastern and China Seas from Borneo and other islands; and on the north-east by the Straits of Malacca from the peninsula of Malayo, to which, according to a tradition noticed by the Portuguese historians, it is supposed to have been anciently united.
LONGITUDE.
The only point of the island whose longitude has been settled by actual observation is Fort Marlborough, near Bencoolen, the principal English settlement, standing in three degrees forty-six minutes of south latitude. From eclipses of Jupiter's satellites observed in June 1769, preparatory to an observation of the transit of the planet Venus over the sun's disc, Mr. Robert Nairne calculated its longitude to be 101 degrees 42 minutes 45 seconds; which was afterwards corrected by the Astronomer Royal to 102 degrees east of Greenwich. The situation of Achin Head is pretty accurately fixed by computation at 95 degrees 34 minutes; and longitudes of places in the Straits of Sunda are well ascertained by the short runs from Batavia, which city has the advantage of an observatory.
MAP.
By the general use of chronometers in latter times the means have been afforded of determining the positions of many prominent points both on the eastern and western coasts, by which the map of the island has been considerably improved: but particular surveys, such as those of the bays and islets from Batang-kapas to Padang, made with great ability by Captain (now Lieutenant-Colonel) John Macdonald; of the coast from Priaman to the islands off Achin by Captain George Robertson; and of Siak River by Mr. Francis Lynch, are much wanted; and the interior of the country is still very imperfectly known. From sketches of the routes of Mr. Charles Campbell