Traces of their encampment grounds are still to be found along this coast, principally from Maldonado to the Brazilian frontier, where many of their primitive weapons and utensils are still to be met with, and also the remains of what must have been their watch-fires, mounds of burnt bones, containing amongst the rest bones and teeth of seals which crumble under touch. This coast in these former times evidently abounded in seal life, as the natural conditions offered every attraction to these now timid animals. A storm-beaten coast, with plentiful havens, in the mouth of a large estuary abounding with fish, enticed the seals to the shore and made them an easy prey to the Indians, but time has driven them to the present rookeries which now afford them protection. The first record of the sealing industry on the coast of Uruguay having been put to practical purposes is that in the year 1834 they were rented by the Government for the period of ten years to Señor Francisco Aguilar for the sum of $80,000. The condition was imposed that he should erect a suitable edifice to be used as a public school in the town of Maldonado. This latter condition was altered insomuch that the building, when completed, was used as a chapel, and has remained so ever since. [Illustration: A SEAL ROOKERY.] [Illustration: BASKING SEALS. To face p. 292.] From the termination of this contract up to the year 1858 this industry was worked by various tenants, but in this latter year the Government passed a Law imposing a tax of 20 centavos per skin and 4 centavos per 10 kilos of seal oil, to be paid in equal proportions to the municipalities of Maldonado and Rocha Departments, on whose coasts the islands are situated. A further Law in the year 1896 doubled these taxes, which were destined by the said Law to be applied by the municipal authorities to the public works and the creation of artificial parks. The following tables will show the number of skins produced from these islands since the year 1873: Year. Skins.