. 84 
appear to show, that we may recognise, even in Asia Minor, the 
great formations, occupying the lowest and highest positions of the 
series, which are well marked by fossils, namely the Silurian and 
Tertiary formations ; and also an intermediate formation correspond- 
ing in general with the Secondary rocks of the north, but not as yet 
reduced to any parallelism with them in the order of its members. 
Besides these sedimentary rocks, in this as in most other countries, 
there are found vast collections of igneous rocks of various kinds, 
which interrupt and modify, and may mask and overwhelm, the 
fossiliferous strata. A paper has been communicated to us by Mr. 
Hamilton, “On a part of Asia Minor,” namely, the country extend- 
ing from the foot of Hassan Dagh to the great salt lake of Toozla, 
and thence eastwards to Cesarea and Mount Argzeus, and thus 
occupying a part of the ancient Cappadocia. 
It appears that in this district the igneous rocks occupy a large 
portion of the surface, and the sedimentary strata which are asso- 
ciated with these are not easily identified with those which occur 
in countries already examined. The district examined by Mr. Ha- 
milton contains a limestone belonging to the vast calcareous lacus- 
trine formation of the central part of Asia Minor, and beneath this, 
a system of highly inclined beds of red sandstone, conglomerates and 
marls, which are perhaps connected with the saliferous deposits of 
Pontus and Galatia; but which could not be satisfactorily com- 
pared with the beds of the south of Europe, for want of the occur- 
rence of organic remains. In only one instance did Mr. Hamilton 
observe the trace of organic bodies in the sandstone: these were 
impressions resembling fucoids, and similar to those found in the 
Alpine limestone near Trieste. Mr. Hamilton ascended to the 
summit of Mount Argeeus, which had not previously been reached 
by any traveller, which rises abruptly from the alluvial plain of 
Cesarea to the height of 13,000 feet. 
We have another contribution to the geology of the countries 
exterior to the Alps and Pyrenees in Mr. Sharpe’s memoir on the 
geology of Portugal. He has examined with great care the neigh- 
bourhood of Lisbon, and has traced the superposition of the strata, 
naming the most conspicuous of them from the places in which 
they are well exhibited. His series (exclusive of igneous rocks) 
consists of San Pedro limestone (which rests upon the granite). 
