Page:Philosophical Transactions - Volume 004.djvu/241

 ''torrents, that would cause very great invonveniences, if it were not for the care used to prevent them. The Boats that shall come from the Mediterranean, shall enter at the Port St. Louys, which is at the Cape of Cette; and those that shall come from the Ocean, shall pass to Bourdeaux: they shall ascend by means of Sluces unto the Point of Division, and descend from thence after the like manner. The number of the Sluces will be great, because of the great declivity, there is from the said Point towards both Seas. In the Mapp are noted those only, that are made from Tholose unto the Point of Separation, whilst we are busy in marking also those on the other side with the same exactness.''

7. The mark of the Sluces.

Give you many thanks for the last Letters, and the loane of your Book. The Dr. indeed hath gotten ground of his Adversary; but whether either of them hath gotten the right on his side, I cannot judge, being a stranger to that Water, much differing (it seems) from these about Us; and therefore may participate of other Minerals, and more, both in quantity and number. But, whether all those distinct Minerals, reckon'd up by the Dr, do conspire to make up this Medicinal water, and that none of them can be left out, may be doubted: And it seems, he doth himself speak very doubtfully as to Salt; acknowledging it to be the least of all the other, if there be any differing from the Salt of the Metals; though it be sometimes covered by the Sea, as he saith pag. 89.

Next, I wonder, why he should set Allom in the front of the Constituents of his Medicinal water: Alumen exiccat astringit, incrassat. Now how the Water should be so highly deopilative, and so beneficial to Hypochondriacal and Cachectical persons, being impregnated with so great an Astringent, I understand not, neither doth the Dr. declare: Besides, he confesseth, Allum-water will not tinge with Galls as he acknowledges this will do.