INDEX. 



419 



Page 



Eels, towns named from . . . 378 



: , mode of supplying London . 379 



, burving-placesof, discovered 



by frost 379 



frozen and thawed again . 11 

 , spearing 379 



, novel modes of fishing for . 380 



- eaten by rats, &c. . . .381-384 



, cold inimical to .... 385 



, migration to sea .... 385 



, eel-bucks 387 



, eel-fare 388 



, habits in confinement . . 389 



, tame 390 



, travelling overland . . . 390 



, how they escape .... 391 



, breeding in fresh water only 392 



, how generated (superstitions) 393 



, oviparous or viviparous . . 393 



, very large 394 



. ferocity 395 



, disease in 396 



, lymphatic heart .... 401 



Eggs of fish, numbers .... 109 



Esocidce, family of 180-237 



Esox, genus 180-237 



Excretion, organs of 8 



Families of fish generally ... 40 

 , derivation of names ... 40 



of British Fresh- water fish 43-46 

 Feeling, in fish generally ... 14 



, instances of want of ... 15 



Fin-rays 31 



Fins, structure and uses . . . 31-33 

 Fishes generally, position in Ani- 

 mal Kingdom 6 



, numbers of 6 



, plans on which constructed 7 

 , general organization of . . 7, 8 

 , nerves, arrangement of . . 7 



, of sensation and volition 7 



, of smell, sight, taste, 



and hearing 8 



, vertebrse, spinal column, &c. 7, 27 



, brain 8 



, organs of digestion . . . 8, 17 

 , organs of respiration, circu- 

 lation, and excretion ... 8 

 , air- or swim-bladder, posi- 

 tion ..... 8 



Fishes generally, continued. 

 , air- or swim-bladder, distri- 

 bution of, amongst fish 

 contents of 



-, , engraving of, in Carp . 



-, breathing-apparatus . . . 

 -, gills, gill-arches, gill-fila- 

 ments 



-, pharyngeal arch .... 

 -, heart, structure of ... 

 -, kidneys, position of ... 

 -, temperature of blood 



Page 



19 

 19 

 20 



8-9 



18 

 10 

 , extremes of high and low 



temperature sustained by . 11 

 , sight of, and structure, &c. 



of eye 11-13 



, hearing of, and structure of 



ear 13-14 



, feeling, sense very low . . 14 



, use of ' barbels ' or ' beards ' 15 



, diseases of, and parasites . 16 



, smell, sense probably acute : 



examples 16 



, taste, probably low ... 17 



, affections 17 



, sexual distinctions ... 20 



, organs of reproduction . . 20 



, hard, and soft roe or ' milt ' 21 

 , eggs, numbers of . . . . 109 

 , spawning-process .... 21 

 , viviparous fish (producing 

 their young alive) .... 23 



, engravings of young of . . 24 



formation and 



24-27 

 26 

 25 



, 32 

 , 27 

 28-30 

 30 



, 30 

 31-33 

 31 



, denominations of . 



lateral line, formation of 



, position of . 



propulsion, mode of . . 

 bones of head, names of . 

 , gill-covers . 



-, gill-rays 

 -, fins, 



structure and uses 



, fin-rays 



, teeth names, situation, and 



form 33-34 



-, general classification of . 36-41 



, families of, and derivation 



of names 40 



, British Fresh-water, intro- 

 ductory remarks on ... 42 



