The Newtown bee., 1905-01-27

a falling temperature of correspond ing range were killed. Should the temperature remain much below 60 de- grees for several days, all further spawning will cease until the tempera- ture again rises to above 60 degrees. When the eggs hatch the young fish are almost colorleSs, and are provided with yolk sacks which contain nourish- ment sufficient to carry the fish until fully developed and ready to take food through the mouth. During this pe- all through the gravel. Individuals can be seen to swim up few inches | from the gravel, then gradually sink l back again where they remain quiet | for a time. As the development pro- greSSeS this activity increases, the fish are now sufficiently developed to take nourishment through the mouth, and they rise from the gravel and swim about in the immediate vicinity of the nest in search of food. Just before | the school rises, we place screens in the spawning boxes and thus corral them, otherwise they would soon swim out of nest box and could not be caught. The young fish are now trans | ferred to large tanks where they are supplied with food. In the wild state, the male fish continues to guard the school for several days. The young l fish make rapid growth when their na- tural food is abundant. They soon become very active, and in a few days are able to look out for themselves when they are finally deserted by the parent fish.
 The male now prepares another nest, and proceeds to raise up another fami- ly. When this is accomplished, he is | to al 0 0ro Q third time, and if spawning females are still available, proceed to rear a third family, and in one instance at the hatchery, the fourth family.
 During the spawning season which continued for period of 49 days, it was estimated that over 100000 fry were produced. There was no time to count this vast number of young fish.
 The fry of each period were placed in large stone tank, where they would soon become quite evenly dis tributed through the water.
 Several disinterested persons gave us what in their opinion was the aver age amount of space occupied by each individual fish, and by computing the water capacity of the tank, we were able to get some idea of the number of fish matched. The fry were held in tank for about two weeks, and liberal ly supplied with food on which they made rapid growth. AS the young fish had become very active, and we had protected them fully as long as the parent would in the wild state, most of them were planted.
 Sixteen thousand of the fry were placed in two divisions of the hatch cry, that were designed for nurs. cry ponds, and were literally supplied with food. When they had made a growth of one and one-half inches, it was found their demand for food was more than we could supply, so 6,00C were taken out and planted. Other plants were made from time to time during the summer, so we could keep up with their demands for food. Fiji nally early in October the nurseries were drawn and the remaining fish planted.
 At this time the fish had made a growth of from four to five inches, and were in perfect condition. From the 16,O00 fry placed in nursery ponds, about IA, GOO were planted during the summer and fall, ranging from one and one-half to five inches in length. Dur ing the fall, some additions were made to the breeding stock, and everything put in shape for the winter.
 The following spring (1904), a second tank was constructed which would give more room for holding the fry and every preparation made for the spawning season. The first pair of bass spawned on May l2, and there was present eggs, fry, or both in vari. ous stages of development for the next 46 days. The fry product which ex ceeded that of last year, was held ir the tanks and given good start. The Commissioners had received a large number of applications for bass, and all were liberally supplied.
 About 10000 of the fry were placed in the nursery ponds, and when they had made a growth of one and one half inches, the ponds were drawn and all on hand were planted.
 This practically closed the period of active work at the hatchery for the season, and also the second season o1 successful propagation of the small mouth black bass.
 The work of the two past seasons has fully demonstrated that it is now possible to secure supply of young bass for restocking lakes and streams where this splendid game fish is ir great danger of becoming extinct Henry w. Beeman.
 A GUARANTEED CURE FOR PILES
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