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und der angränzenden Länderabtheilungen) thus: "The ordinary form of basalt and phonolitic hills is generally so wonderfully uniform that you can often recognize them even from a distance. They are cones. Of course, this typical form has many variations; the [normally] round base may be elongated, the peak may take the form of a rocky crest or ridge, ... but most forms can be reduced at least to a conical or a cone-segment shape. ... Flat ridges are then arranged in rows, out of which rise only a very isolated basalt or phonolite cones."

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