38 Fisnina in AMERICAN WATERS. 
an ounce of saltpetre, the membrane in which the spawn is 
contained being carefully picked out; it is then packed in 
jars and covered closely; in that way it will keep good for 
many months. 
It is suggested that roe of other fishes would do as well as 
that of salmon—such as herrings, because the smell, which 
seems the chief attraction, is quite similar. A paste made in 
the same way from shelled shrimps is also attractive. Mus- 
sels and putrid meat attract eels, obviously in consequence 
of their odor. 
Independently of these and all other ascertained facts re- 
specting smell in fishes, the anatomy of the head proves that 
the nerves of smell are large, and thus establish conclusively 
the fact that fishes are gifted with the sense of smell. 
SECTION SEVENTH. 
ON HEARING IN FISHES. 
Fishes hear. Of this I feel quite sure, without the story 
of Amphion and the Dolphins, or of the auld Scottish harper 
Glenkindie, who—as related in verse—“ harped a fish out 0’ 
the sa’t water.” 
Klian tells us that the chad is allured by the sound of 
castanets, and in Germany they take these fishes with nets 
to which bows of wood hung with little bells are attached 
in such manner as to chime in harmony when the nets are 
moved. These fish, it is stated, will not attempt to escape 
while the bells continue to ring. On the Continent of Eu- 
rope people are in the habit of calling the gold fishes, as well 
as other fishes in ponds, to be fed at the sound of a bell. 
Professor Bradley states that in Rotterdam, at a preserve 
of carps owned by Mr. Eden, he saw them fed. “The gen- 
tleman having filled his pocket with spinach-seed, conducted 
me to the side of the moat, where we stood mute for some 
time, the better to convince me that the fish would not come 
until called. At length he called in his usual way, and im- 
mediately the fish gathered together from all parts of the 
