WEEK ON THE CONCORD AND MERRIMACK RIVERS
BY HENRY THOREAU
In the shallow parts of the river, where the current is rapid, and the bottom pebbly, you may sometimes see the curious circular nests of the lamprey eel (Petromyzon Americanus), the American stone-sucker, as large as a cart-wheel, a foot or two in height, and sometimes rising half a foot above the surface of the water. They collect these stones, of the size of a hen's egg, with their mouths, as their name implies, and are said to fashion them into circles with their tails. They ascend falls by clinging to the stones, which may sometimes be raised, by lifting the fish by the tail. As they are not seen on their way down the streams, it is thought by fishermen that they never return, but waste away and die, clinging to rocks and stumps of trees for an indefinite period; a tragic feature in the scenery of the river bottoms worthy to be remembered with Shakespeare's description of the sea-floor. They are rarely seen in our waters at present, on account of the dams, though they are taken in great quantities at the mouth of the river in Lowell. Their nests, which are very conspicuous, look more like art than anything in the river.
Salmon, shad, and alewives were formerly abundant here, and taken in weirs by the Indians, who taught this method to the whites, by whom they were used as food and as manure, until the dam, and afterward the canal at Billerica, and the factories at Lowell, put an end to their migrations hitherward; though it is thought that a few more enterprising shad may still occasionally be seen in this part of the river. It is said, to account for the destruction of the fishery, that those who at that time represented the interests of the fishermen and the fishes, remembering between what dates they were accustomed to take the grown shad, stipulated, that the dams should be left open for that season only, and the fry, which go down a month later, were consequently stopped and destroyed by myriads. Others say that the fish-ways were not properly constructed. Perchance, after a few thousands of years, if the fishes will be patient, and pass their summers elsewhere, meanwhile, nature will have levelled the Billerica dam, and the Lowell factories, and the Grass-ground River run clear again, to be explored by new migratory shoals, even as far as the Hopkinton pond and Westborough swamp.
Shad are still taken in the basin of Concord River at Lowell, where they are said to be a month earlier than the Merrimack shad, on account of the warmth of the water. Still patiently, almost pathetically, with instinct not to be discouraged, not to be reasoned with, revisiting their old haunts, as if their stern fates would relent, and still met by the corporation with its dam. Poor shad! where is thy redress? When Nature gave thee instinct, gave she thee the heart to bear thy fate? Still wandering the sea in thy scaly armor to inquire humbly at the mouths of rivers if man has perchance left them free for thee to enter. By countless shoals loitering uncertain meanwhile, merely stemming the tide there, in danger from sea foes in spite of thy bright armor, awaiting new instructions, until the sands, until the water itself, tell thee if it be so or not. Thus by whole migrating nations, full of instinct, which is thy faith, in this backward spring, turned adrift, and perchance knowest not where men do not dwell, where there are not factories, in these days. Armed with no sword, no electric shock, but mere Shad, armed only with innocence and a just cause, with tender dumb mouth only forward, and scales easy to be detached. I for one am with thee, and who knows what may avail a crow-bar against that Billerica am?-Not despairing when whole myriads have gone to feed those sea monsters during thy suspense, but still brave, indifferent, on easy fin there, like shad reserved for higher destinies. Willing to be decimated for man's behoof after the spawning season. Away with the superficial and selfish phil-anthropy of men,-who knows what admirable virtue of fishes may be below low-water-mark, bearing up against a hard destiny, not admired by that fellow-creature who alone can appreciate it! Who hears the fishes when they cry? It will not be forgotten by some memory that we were contemporaries. Thou shalt erelong have thy way up the rivers, up all the rivers of the globe, if I am not mistaken. Yea, even thy dull watery dream shall be more than realized. If it were not so, but thou wert to be overlooked at first and at last, then would not I take their heaven. Yes, I say so, who think I know better than thou canst. Keep a stiff fin then, and stem all the tides thou mayst meet. At length it would seem that the interests, not of the fishes only, but of the men of Wayland, of Sudbury, of Concord, demand the levelling of that dam. Innumerable acres of meadow are waiting to be made dry land, wild native grass to give place to English. The farmers stand with scythes whet, waiting the subsiding of the waters, by gravitation, by evaporation or otherwise, but sometimes their eyes do not rest, their heels do not roll, on the quaking meadow ground during the haying season at all. So many sources of wealth inaccessible. They rate the loss hereby incurred in the single town of Wayland alone as equal to the expense of keeping a hundred yoke of oxen the year round. One year, as I learn, not long ago, the farmers standing ready to drive their teams afield as usual, the water gave no signs of falling; without new attraction in the heavens, without freshet or visible cause, still standing stagnant at an unprecedented height. All hydrometers were at fault; some trembled for their English even. But speedy emissaries revealed the unnatural secret, in the new float-board, wholly a foot in width, added to their already too high privileges by the dam proprietors. The hundred yoke of oxen, meanwhile, standing patient, gazing wishfully meadow-ward, at that inaccessible waving native grass, uncut but by the great mower Time, who cuts so broad a swathe, without so much as a wisp to wind about their horns.
Shad, armed only with innocence and a just cause, with tender dumb mouth only forward, and scales easy to be detached. I for one am with thee, and who knows what may avail a crow-bar against that Billerica dam?