It may appear to many that it is below the dignity of science to concern one's self with so trifling an affair as the fall of a small quantity of dust. But this is by no means the case. For I estimate the quantity of the dust that was found on the ice north of Spitzbergen at from 0.1 to 1 milligram per square metre, and probably the whole fall of dust for the year far exceeded the latter figure. But a milligram on every square metre of the surface of the earth amounts for the whole globe to five hundred million kilograms (say half a million tons)! Such a mass collected year by year during the geological ages, of a duration probably incomprehensible by us, forms too important a factor to be neglected, when the fundamental facts of the geological history of our planet are enumerated. A continuation of these investigations will perhaps show, that our globe has increased gradually from a small beginning to the dimensions it now possesses; that a considerable quantity of the constituents of our sedimentary strata, especially of those that have been deposited in the open sea far from land, are of cosmic origin; and will throw an unexpected light on the origin of the fire-hearths of the volcanoes, and afford a simple explanation of the remarkable resemblance which unmistakably exists between plutonic rocks and meteoric stones.[192] On the 14th August, when the fog had lightened a little, we got up steam, but were soon compelled to anchor again in a bay running into Taimur Island from the north side of Taimur Sound, which I named Actinia Bay, from the large number of actinia which the dredge brought up there. It is, besides, not the only place in the Kara Sea which might be named from the evertebrate life prevailing there, so unexpectedly abundant. [Illustration: GRASS FROM ACTINIA BAY. _Pleuropogon Sabini_, R. BR. ]