As to sea-weeds, or mosses,—the extent, luxuriance, variety, and beauty of the algæ forests of those waters of Bering Sea which lave the coasts of the Pribylov Islands, call for more detail of description than space in this volume will allow, since anything like a fair presentation of the subject would require the reproduction of my water-colored drawings. After all heavier gales, especially the southeasters in October, if a naturalist will take the trouble to walk the sand-beach between Lukannon and northeast point of St. Paul Island, he will be rewarded by the memorable sight. He will find thrown up by the surf a vast windrow of kelp along the whole eight or ten miles of this walk—heaped, at some spots, nearly as high as his head; the large trunks of _Melanospermæ_, the small, but brilliant red and crimson fronds of _Rhodospermæ_ interwoven with the emerald-green leaves of the _Chlorospermæ_. The first-named group is by far the most abundant, and upon its decaying, fermenting brown and ochre heaps, he will see countless numbers of a buccinoid whelk, and a limnaca, feeding as they bore or suck out myriads of tiny holes in the leaf-fronds of the strong growing species. _Actinia_ or sea-anemones, together with asteroids or starfishes, _Discophoræ_ or jelly-fishes, are also interwoven and heaped up with the “kapoosta” or sea-cabbages just referred to; also, many rosy “sea-squirts,” yellow “cucumbers,” and other forms of _Holothuridæ_. On the old killing-fields, on those spots where the sloughing carcasses of repeated seasons have so enriched the soil as to render it like fire to most vegetation, a silken green _Confervæ_ grows luxuriantly. This terrestrial algoid covering appears here and there, on these grounds, like so many door-mats of pea-green wool. That confervoid flourishes only on those spots where nothing but pure decaying animal matter is found. An admixture of sand or earth will always supplant it by raising up instead those strong growing grasses which I have alluded to elsewhere, and which constitute the chief botanical life of the killing-grounds.