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nationwhichPORMATJON AND COMPOSITION OP THE PYRENEES. ~33tbêmore itrefiects*.The highest summits are of calcareous matter.The 111,ain mass i8 of schist; and it is probable that what we at presentsee is little more than the base of the mass.According to thegeneral laws of Nature, decomposition hills formparallelito great chains of mountains. These hills again have a tendencytoferruginousand othermetallic'conformations. The courses ofthewate,r~arethen turned parallel to the chain, until, no longer to be1'e , they force their way through this secondary line. Such hashere: such is the case at the foot of l\10unt Atlas. Asthe aquatic plant of the plain of Languedoc below, 50•affects these high situations of about five thousandThe rnountains may he considered as enteredthe time the cork-tree presents itselfwith iis picturesquera­These trçes are mpch swayedhere from the south-west,blasts from that qnarter.The new road to Belgardeadmfrât~'fY laid out, with hardIy a deviation from the uniform incliofthe plane: and to do this, obstacles have been conqueredNt'f'4f;~ntinsurmountable.Somepatches of old road he1'e andthemselves, to prove to us how allis comparative with usta see the preseQt Foad, would wonder how a carriagecouldhave way formerl)t;yet cardages did. Belgarde, andthe iml at remainas heretofore. In this respect the vieinityofSpain seemsto affect every thing ; and the process of improvemenfisaàimmoveableasthemountains themselves.Nature, an to the* How can it be otherwise?· Where is the mind that couhl remain insensible to such wonders tEminences, in alternation of matter granitic and calcareous l Mountains wi~h summits crownedwith horizont of calcareous matter 1 Add to· this, what may be reminded of agajn and again,thiseastern, on is schist ! COnl)cct with these a6tonishing features the diluvian remain~in the plains 0 Toulouse lWd Morocco. ..2u