xii CONTENTS. 



CHAPTER VIII.— CuLTUEE of Eels. 

 Probability of eels being of sufBcient importance to be cultiTated. 

 —General remarks on eels.— Eel culture at Comacchio P. 219 



CHAPTER ES.— CuLTUEE or Otstees. 

 The Oyster.— An hermaphrodite. Its fecundity.— /<« spawn or 

 " spat," and its manner of incubation.— Emission of the spat, 

 and its destruction by marine animals.— Importance of its find- 

 ing something to fasten to.— Places favorable to its growth.— 

 Transportation of seed oysters to the north.— Growth of the 

 young oyster.— Chief object in the culture of oysters. Oyster 

 Culture at Fusaro.— Its antiquity.— Its progress in France at the 

 Bay of St. Brieuc and the Island of Ree.— English and French 

 oysters. — Decrease of oysters in Eastern States. — Governor 

 Wise's estimate of the area and value of oyster-beds in Vir- 

 ginia ....■•• 225 



APPENDIX. 

 I. — Natueal food of Teout ... 23 



II. — Mkssrs. Maetin and Gillone's system of hatch- 

 ing AND EEAEING YOUNQ SaLMON . . 241 



III. — Cui.tuee op Caep .... 244 



IV. DiSCOVEET OP AETIFICIAL FECUNDATION BY JaCOBI 243 



V. — Aetipicial Spawning-beds . . . 248 



VI. — The Godkami. — Its Habitat, oe Native Coun- 



tey ...... 250 



VII. — Cold Spring Trodt-fonds . . 264 



VIII. — Clove Speing Trout-ponds 272 



IX. — Cultivation of Fue-bearing Anim.\ls . 274 



X. — American Fish foe English Waters . 278 



XI. — Dr. J. H. Slack's Trout-breeding Establish- 

 ment ...... 287 



XII. — Stephen H. Ainsworth's new Hatching-race, 



for Natural Propagation . 28S 



XIII. — Crustacea . . . 290 



XIV. — Salmon Hatching Establishment on the Mira- 



MiCHi ... . . 297 



