"Supposing five thousand square miles of land are flooded. When the water goes down, at least half that amount of land is still flooded, though no longer connected with the river, but forming shallow lakes and pools. These are all full of fish. As the pools dry up, everything that is in them dies, and millions of food fish are lost."
"But how can we stop that?"
"The Bureau of Fisheries does a great deal to stop it," was the answer, "and if this rain
holds—though we are all praying that it won't—you'll probably have a chance to see. The Bureau seines as many as it can of those bayous and pools and lakes to save the fish and return them to the river. If a couple of men can save several thousand fish a day, isn't that worth while? Think of a farmer who could get a thousand bushels of wheat in a day! And that's about the proportion of food value."
"Well," said Colin, as he was leaving the laboratory to take up another piece of work he had been told to do, "I don't want a flood to come, of course, but if there is one, I'd like to have a chance to see how the Bureau handles that sort of fish rescue work."
The reports the next morning were no more encouraging,—the Weather Bureau reporting heavy rain in Montana and the Milk River in flood. Fortunately the weather was fine in the eastern States, but a flood on the Milk River usually means a Missouri River flood, and that takes in nearly two-fifths of the Mississippi basin. Around the Iowa station the rain still poured heavily. By the end of the week more hopeful reports came from the west. As the southwest had escaped entirely no serious trouble was expected, but in the region
near the laboratory the rain was coming down in torrents and the Wapsipinicon and Cedar Rivers were overflowing their banks.
Climbing up the Wheel.