Page:Popular Science Monthly Volume 22.djvu/250

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238
THE POPULAR SCIENCE MONTHLY.

been better to put all the chapels under one roof. The horizontal and perpendicular sections are equally at variance with the curved surface formed by a fluid in vibration. The columnar basalt would form a

PSM V22 D250 Entrance to cormorants cave on staffa.jpg
Fig. 4.—Cormorant’s Cave, Staffa, 1461. G. W. W.

curved and not a rectangular water-line. What other cavern has a uniform breadth from the opening, and five and a half diameters in length?

Cormorant's or Mackinnon's Cave is easy of access, and terminates