deas, agree with or confirm the present theory, which had been founded
upon other observations, is here submitted to the learned.
We have now not only found a cause corresponding to that which can alone
be conceived as producing this evident deplacement of bodies formed
horizontally at the bottom of the sea, but we have also found that this
same cause has operated every where upon those strata, in consolidating
by means of fusion the porous texture of their masses. Now when the
evidence of those two facts are united, we cannot refuse to admit, as a
part of the general system of the earth, that which is every where to be
observed, although not every where to such advantage as in those regular
appearances, which our author has now described from those alpine
regions.
I have only one more example to give concerning this great region of the
Alps belonging to Savoy and Switzerland. It is from the author of Les
Tableaux de la Suisse.
[3] "On s'embarque a Fluelen a une demi-lieue d'Altorf sur le lac des
quatre Waldstoett ou cantons forestiers; les bords de ce lac sont des
rochers souvent a pic et d'une tres grande elevation et la profondeur
de ses eaux proportionnee. Ces roches sont toutes calcaires, et souvent
remarquables par la position singuliere de leurs couches. A une
demi-lieue environ de Fluelen, sur la droite, des couches de six pouces
environ d'epaisseur sont deposees en zig-zags comme une tapisserie
de point-d'hongrie; a une lieue et demie a cote de couches bien
horizontales, de quatre a cinq pieds d'epaisseur il y en a de
contournees de forme circulaire et d'elliptiques. Il seroit difficile de
se faire une idee de la formation de pareilles couches, et d'expliquer
comment les eaux ont pu les deposer ainsi."
[Footnote 3: Discours sur l'Hist. Nat. de la Suisse, page CLV.]
Having thus given a view of a large tract of country where the strata
are indurated or consolidated and extremely elevated, without the least
appearance of subterraneous fire or volcanic productions, it will now be
proper to compare with this another tract of country, where the strata,
though not erected to that extreme degree, have nevertheless been
evidently elevated, and, which is principally to the present purpose,
are superincumbent upon immense beds of basaltes or subterranean lava.
This mineral view is now to be taken from M. de Luc, Lettres _Phisiques_
et Morales, Tom. 4.
This naturalist had discovered along the side of the Rhine
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