138 MAKING A FISHERY. 



counting of the cost, the ambitious amateur 

 has, as a rule, abandoned the experiment. 



For the information of anyone desirous of 

 carrying out these experiments, the following 

 statement, made .by the late Mr. Thomas 

 Andrews, of Guildford, perhaps the most suc- 

 cessful pisciculturist of the century, may be of 

 interest and of use. He said that, with all his 

 experience, with every necessary appliance, 

 with a full staff, and by devoting practically the 

 whole of his own time to supervising the work, 

 he could hatch out eighty per cent, of the ova 

 he took, and raise twenty-five per cent, of his 

 fry to yearlings. In. other words, under the 

 most favourable conditions of artificial hatching 

 and rearing the fry in captivity, giving them an 

 ample supply of the best food procurable, out 

 of one hundred over eighty healthy fry can be 

 expected to hatch out, and only twenty of these 

 live to become yearlings. In a state of nature 

 the proportion of ova fertilised and hatched out 

 would only be a fraction of the above per- 

 centage, and it is estimated by the same 

 competent authority that out of one thousand 

 naturally hatched fry in a river not more than 

 one is likely to celebrate the first anniversary 

 of its birthday. 

 Methods of Having determined that the plan to be 



adopted is to purchase from a pisciculturist, 



stocking. 



