In their turn the English and the French, who had heard of the fabulous treasures of the Joliba valley and the Tinbukhtu mart, began to claim their share. As early as 1551 Captain Thomas Wyndham touched at the Gold Coast and brought home 150 lbs. of the precious dust. The first English company for exploring the Gambia River sent out (1618) their agent, Richard Thompson. This brave and unfortunate explorer was rancorously opposed by the Portuguese and eventually murdered by his own men. He was followed (1620) by Richard Jobson, to whom we owe the first account of the Gambia River. He landed at various points, armed with mercury, aqua regia (nitric acid), large crucibles, and a 'dowsing' or divining rod; [Footnote: A form of this old and almost universal magical instrument, worked by electricity, has, I am told, been lately invented and patented in the United States.] washed the sands and examined the rocks even beyond the Falls of Barraconda. After having often been deceived, as has occurred to many prospectors since his day, he determined that gold never occurs in low fertile wooded lands, but in naked and barren hills, which embed it in their reddish ferruginous soil. Hence it was long and erroneously determined that bare rocks in the neighbourhood of shallow alluvia characterise rich placers, and that the wealthiest mining-regions are poor and stunted in vegetation. California and Australia, the Gold Coast and South Africa, are instances of the contrary. Wásá, however, confirms the old opinion that the strata traversed by lodes determine the predominating metal; as quartz produces gold; hard blue slate, lead; limestone, green-stone and porphyry, copper; and granite, tin. [Footnote: Page 17, A Treatise on Metalliferous Minerals and Mining, by D. C. Davies. London, Crosby and Co., 1881. The volume is handy and useful to explorers.]
After twenty days' labour Jobson succeeded in extracting 12 lbs. from a single site. He declares that at length he 'arrived at the mouth of the mine itself, and found gold in such abundance as surprised him with joy and admiration.' Unfortunately he leaves us no notice of its position; it is probably lost, like many of the old Brazilian diggings. The Gambia River still exports small quantities of dust supposed to have been washed in the Ghauts, or sea-subtending ridges, of the interior. Most of it, however, finds its way to the wealthier and more prosperous French colony.
Whilst the English chose the Gambia the French preferred Senegal, where they founded (1626) 'St. Louis,' called after Louis XIV. The Sieur Brue, Director-General of the Senegal Company, made a second journey of discovery in 1698, and reached with great difficulty the gold-mines of desert and dreary Bambúk. There he visited the principal districts, and secured specimens of what he calls the ghingan, or golden earth. He proposed a third incursion, but the absolute apathy of his countrymen proved an insuperable obstacle.
M. Golberry describes Bambúk in gloomy and sombre colours. Its gold is distributed amongst low ranges of peeled and sterile hills. Probably this results from fires and disforesting. It occurs in the shape of spangles, grains, and pépites (nuggets), whose size increases with the depth of the digging. In the Matakon mine the dust adhered to fragments of iron, emery, and lapis lazuli, from which it was easily detached and washed. The less valuable Semayla placer produced dust in a hard reddish loam, mixed with still more refractory materials; it was crushed in mortars with rude wooden dollies or with grain-pestles. The pits, six feet in diameter, reached a depth of from ten to twelve yards, where they were stopped by a bed of hard reddish marle; this the Frenchman held to be the hanging wall of a much richer lode. The people used ladders, but they neglected to collar or brace the mouth, and the untimbered pit-sides often fell in; hence fatal accidents, attributed to the 'earth-spirits.' They held gold to be a capricious elf, and when a rich vein suddenly ran barren they cried out, 'There! he is off!'
In later days Mungo Park drew attention by his famous first journey (1795-97) to the highlands of the Mandingoes (Mandenga-land), and revived interest in the provinces of Shronda, Konkodu, Dindiko, Bambúk, and Bambarra. Here the natives collect dust by laborious washings of detrital sand. His fatal second expedition (1805) produced an unfinished journal, which, however, gives the amplest and most interesting notices concerning the gold-production of the region he traversed. My space compels me to refer readers to the original. [Footnote: Murray's edition of 1816, vol. i, p. 40, and vol. ii. p. 751.]
The traveller Caillié (1827), after crossing the Niger en route to Tinbukhtu, passed south of the Bouré province, in the valley of the Great River; and here he reports an abundance of gold. As in the districts visited by Park, it is all alluvial and washed out of the soil. The dust, together with native cloth, wax, honey, cotton and cattle, finds its way to the coast, where it is bartered for beads, amber and coral, calicoes and firearms. The gold-mines of Bouré were first visited and described by Winwood Reade. [Footnote: Coomassie, &c., p. 126.]
The peninsula of Sierra Leone is not yet proved to be auriferous. Here stray Moslems, mostly Mandengas, occasionally bring down the Melakori River ring-gold and dust from the interior. The colonists of Liberia assert that at times they have come upon a pocket which produced fifty dollars; the country-people also occasionally offer gold for sale. From the Bassam coast middle-men travel far inland and buy the metal from the bushmen. Near Grand Bassam free gold in quartz-reefs near the shore has been reported.
We now reach the Gold Coast proper, which amply deserves its glorious golden name. I have shown that the whole seaboard of West Africa, between it and Morocco, produces more or less gold; here, however, the precious metal comes down to the very shore and is washed upon the sands. Its length from the Assini boundary-line to the Volta [Footnote: Chapter XIV. I would not assert that gold is not found east of the Volta River. M. Colonna, of Lagos, told me that he had good reason to suspect its presence on the seaboard of Dahome, and promised me to make further enquiries.] has been laid down at 220 direct geographical miles by a depth of about 100. The area of the Protectorate, which has been a British colony since 1874, is assumed to be 16,620 instead of 24,500 square miles, and the population may exceed half a million. Its surface is divided into twelve petty kingdoms; and its strand is studded with forts and ruins of forts, a total of twenty-five, or one to every eight miles. This small section of West Africa poured a flood of gold into Europe; and, until the mineral discoveries of California and Australia, it continued to be the principal source of supply to the civilised world.
The older writers give us ample details about gold-digging and trading two centuries ago. Bosnian (Letter VI.) shows that the people prospected for the illustrious metal in three forms of ground. The first was in, or between, particular hills, where they sank pits; the second was about the rivers and waterfalls; and the third was on the seashore near the mouths of rivulets after violent night-rains. He ends his letter with these sensible words: 'I would refer to any intelligent metallist whether a vast deal of ore must not of necessity be lost here, from which a great deal of gold might be separated, from want of skill in the metallic art; and not only so, but I firmly believe that vast quantities of pure gold are left behind; for the negroes only ignorantly dig at random, without the least knowledge of the veins of the mine. [Footnote: The origin of these mineral veins is still disputed, science being as yet too young for the task of solving the mystery. Probably, as Mr. Davies remarks, 'the mode of the origin and means of the deposition are not one only but many,' and we have the Huttonian (igneous) and Wernerian (aqueous) theories, the sublimation of Necker, the electricity of Mr. R. W. Fox, the infiltration and gravitation of fluid metals towards cracks, vughs (cavities), and shrinkages, and the law of replacement. 'If a steel plate be removed atom by atom,' says Mr. R. Brough Smyth (Gold Fields of Victoria, Melbourne, 1869), 'and each atom be replaced by a corresponding atom of silver—a fact established by direct experiment—it will be readily seen that a mineral vein may be formed in the same way.'] And I doubt not that if the land belonged to Europeans they would soon find it to produce much richer treasures than the negroes obtain from it. But it is not probable that we shall ever possess that liberty here, wherefore we must be content with being so far masters of it as we are at present, which, if well and prudently managed, would turn to a very great account.'
Times, however, are changed. England is now mistress of the field, and it will be her fault if she leaves it untilled.