The fishes were as nearly as possible three pounds each, great slab-sided things, which gave a few vigorous rushes and then succumbed quietly to the angler.
And so the sport went on. At every swim one or the other of them had a bite, and as they did not choose to lose time by using the cloth to every fish, they were soon covered with the slime off them, which dried on their white flannels and made them in a pretty mess.
"In what immense numbers these fish must breed," said Dick.
Angling.
"Yes," answered Frank, "fish of this kind lay more eggs than those of the more bold and rapacious kind, such as the perch and pike. I have read that 620,000 eggs have been counted in the spawn of a big carp. You see that so many of the young are destroyed by other fish that this is a necessary provision of nature. I once saw the artificial breeding of trout by a way which I have never told you of, and it was most interesting. It was in Cheshire, where some gentlemen had preserved a trout-stream and wished to keep up the stock. Into the large stream a small rivulet ran down a cleft in the bank like a small ravine, and in this cleft they had built their sheds. The trout-spawn was placed in troughs which had
bottoms made of glass rods side by side, close enough together to prevent the eggs falling through, but wide enough to let the water pass through freely. Over these troughs a continual stream of water was directed. The eggs were pale yellow in colour when alive, but if one of them became addled or dead it turned white, and it was then picked off by means of a glass tube, up which it was sucked by the force of capillary attraction without disturbing the other eggs. By and by you could see a little dot in the eggs. This got larger and larger until the covering burst, and the fish came out, with a little transparent bag bigger than themselves attached to their stomachs. They ate nothing until this dried up, and they lived upon what they absorbed out of it. When the fish were about an inch long they were put into small pools up the brook, where they were watched very carefully by the keeper, who set traps for rats and herons. Then as they got bigger they were put into larger pools, and finally into the river."