NATURE OF FISHES. 



C hapter I. General Character of Fishes, 259 

 Areas of Seas and Land, 259 



II. Exterior of Fishes, 267 



III. Osteology of Fishes, 269 



IV. Myology of Fishes, 310 



V. Brains and Nerves of Fishes, 322 



VI. Organs of the external Senses in Fishes, 335 



VII. Organs of Nutrition of Fishes, 352 



VIII. Organs of Generation of Fishes, 376 



IX. General Recapitulation of the Organization of 

 Fishes, 380 



APPENDIX. 



Ancient and Modern Authors ox Ichthyology, 393 



