PREFACE. 



The practice of Pisciculture has become a 

 matter of such public interest and importance, 

 that I am induced to put forth this little treatise, 

 not because no works on this subject have been 

 published before, but because there are many 

 points which are extremely interesting in the 

 science, and which, in all probability, will be- 

 come the most popular part of it, which have 

 been hitherto almost overlooked. 



My design is not only to show my readers 

 how they may hatch the eggs of fish, but how 

 they can best bestow their energies, and direct 

 their studies and experiments, as a means to- 

 wards increasing the supply of wholesome fish 

 food ; to review the various fresh-water fish found 

 in Great Britain, and point out those which are 

 most valuable to us, and how they may best 

 be distributed, cultivated, and increased; and 



