future ages ; for, indeed, we ought to consider that these waters had their source and beginning from vast, high mountains, and were carried over craggy rocks and inaccessible passages ; and to make these ways plain, they had no help of instruments forged of steel or iron, such as pickaxes or sledges, but served themselves only with one stone to

break another. Nor were they acquainted with the invention of arches, to convey the water on the level from one precipice to the other, but traced round the mountain until they found ways and passages at the same height and level with the head of the springs."

" The cisterns or conservatories which they made for

these waters, at the top of the mountain, were about 12 feet deep ; the passage was broken through the rocks, and channels made of hewn stone, of about two yards long and about

a yard high ; which were cemented together, and rammed in with earth so hard, that no water would pass between, to weaken or vent itself by the holes of the channel.

"The current of water which passes through all the division of Cuntisuyu I have seen in the province of Quechua, which is part of that division, and censidered it an extraordinary work, and indeed surpassing the description and report which hath been made of it. But the Spaniards who were aliens and strangers, little regarded the convenience of these

works, either to serve themselves in the use of them, or to keep them in repair, nor yet to take so much notice of them as to mention them in their histories, but rather out of a scornful and disdaining humor, have suffered them to run