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 Rh of lines do. His canals in the dark regions end at the very points at which the others begin, and they do this invariably. There is no canal in the dark areas which does not so connect with one in the bright regions.

Finally, some of the most southern appear to run tolerably straight toward the pole; but of the plan underlying the whole system of Martian canals we cannot at present predicate details, as, though the system instantly suggests plan, it suggests a plan that does not instantly commend itself to human comprehension.

Mr. Douglass finds 44 of these canals, not including the straits between the islands, as is shown in the following list:—