Our frequent residence at Tentholm revealed to us several important advantages which we had not foreseen. Numbers of splendid turtles often came ashore to deposit their eggs in the sand, and their delicious flesh afforded us many a sumptuous meal. When more than one of these creatures appeared at a time, we used to cut off their retreat to the sea, and, turning them on their backs, fasten them to a stake driven in close by the water's edge, by a cord passed through a hole in their shell. We thus had fresh turtle continually within our reach; for the animals throve well thus secured, and appeared in as good condition, after having been kept thus for several weeks, as others when freshly caught. Lobsters, crabs, and mussels also abounded on the shore. But this was not all; an additional surprise awaited us. As we were one morning approaching Tentholm, we were attracted by a most curious phenomenon. The waters out at sea appeared agitated by some unseen movement, and as they heaved and boiled, their surface, struck by the beams of the morning sun, seemed illuminated by flashes of fire. Over the water where this disturbance was taking place hovered hundreds of birds, screaming loudly, which ever and anon would dart downward, some plunging beneath the water, some skimming the surface. Then again they would rise and resume their harsh cries. The shining, sparkling mass then rolled onward, and approached in a direct line our bay, followed by the feathered flock above. We hurried down to the shore to examine further this strange sight. I was convinced as we approached that it was a shoal, or bank, of herrings. No sooner did I give utterance to my conjecture than I was assailed by a host of questions concerning this herring-bank--what it was, and what occasioned it. "A herring-bank," I said, "is composed of an immense number of herrings swimming together. I can scarcely express to you the huge size of this living bank, which extends over a great area many fathoms deep. It is followed by numbers of great ravenous fish, who devour quantities of the herrings, while above hover birds, as you have just seen, ready to pounce down on stragglers near the top. To escape these enemies, the shoal makes for the nearest shore, and seeks safety in those shallows where the large fish cannot follow. But here it meets with a third great enemy. It may escape from the fish, and elude the vigilance of sharp-sighted birds, but from the ingenuity of man it can find no escape. In one year millions of these fish are caught, and yet the roes of only a small number would be sufficient to supply as many fish again." Soon our fishery was in operation. Jack and Fritz stood in the water with baskets, and baled out the fish, as one bales water with a bucket, throwing them to us on the shore. As quickly as possible we cleaned them, and placed them in casks with salt, first a layer of salt, and then a layer of herrings, and so on, until we had ready many casks of pickled fish.