REYKHOLT. 
253 
name of Tungu-hver, we passed on to those of 
Aahver , the situation of which is truly remark¬ 
able. They rise from a solid rock # , as far as I can 
remember, about twenty feet in diameter, stand¬ 
ing insulated nearly in the middle of a wide and 
cold stream, above the level of which it rises to 
the height of three or four feet. On the summit 
are two apertures, each of them a foot or a foot 
and half in width, and from these are almost in¬ 
cessantly spouting little jet,s of boiling water, 
which, trickling down on one side of the rock, 
* The authors of the Voyage en Islande, seem to consider 
this rock formed by a deposition from the boiling waters, 
which, perhaps, may be the case, though the color which, 
when I saw it, was almost entirely of a reddish brown, does 
not exactly accord with their description. There were, indeed, 
some patches of a whitish substance, that appeared to me to 
originate in a kind of bolus, thrown out by the water. “Aahver 
“ est la seconde source dont on ait connoissance. Sa position 
u la rend remarquable, et Ton peut dire qu’il n’y a pas sa pa- 
“ reille en Islande, attendu qu’elle coule depuis les Thermes 
“ de Tungu, an milieu du Reikholtsaa, en prenant vers Test. 
“ La force inerustative de ses eaux a forme pen k peu un 
“ rocher qui s’elbve h cinq pieds au-dessus de la riviere. 
“ 11 est d’une telle blancheur, que l’on dirait qu’on l'a endui 
“ de chauxj il est constitue d’une concretion de thermes, 
“ qui a acquis la solidite de la pierre. On remarque dans 
ec son interieur, des petits trous ou, pour mieux dire, des 
“ petits conduits courbes d’ou jaillissent avec murmure les 
“ eaux bouillantes qui partent de son fond. Les bords de 
“ ces trous sout colores en dehors d’un jaune verd&tre, ce 
“ qui provient des vapeurs sulphureuses.” t, i. p. 220. 
