pendices or Inteftinula, Heart, Kidneys, Bladder, A- 
iius, 6cc. 
Next to the parts of Fifties and their ufes, many things 
are fayd concerning their hearing, their relpiration, 
their Motions, Generation, Food, Growth, Age, and 
their divifion, I will here only touch upon fome par- 
ticulars. 
It is noted concerning the Eys of fifties, that they are 
flatter or more deprelfed then thofe of Quadrupeds, 
but the Chryftaliine humour rounder, indeed either ex- 
actly Sphasrical, or very near it. They want Ey-lids, 
and it is ihewed that they are not neceflary to them. 
Concerning the hearing of fifties, it is remarked, that 
in no Fifties befides the Cetaceous kind, have hitherto 
been found any Auditory paffages or Ear-holes, and whe- 
ther they hear or no, is a queftion not yet fully decid- 
ed, notwithftanding all the Experiments alledged to 
prove the Affirmative. For to that of calling the fifties 
together to meat in the Arch-Biftiop of Salf^urgsGTS- 
den by the tolling of a Bell, it may be anfwered, 
that for ought is laid in the Relation, the Bell might 
be hung in the Fiihes fight; and fo they obfcrving the 
motion, not hearing the found, might haflen to the 
place where it was made, in hope of a bait; juftasdid 
the Fifties obferved by Jugujtine in a certain Pool in 
the Territory of Boll, which having been ufed to be 
fed by Perfons looking into the water, as foon as any 
Hian appeared walking on the brink, would prefently 
fwim up to them in Sholes, and attend them as they 
walked to and fro, in expedation of food. Howbeit 
this experiment might eafily be improved to a demon- 
ftration, by placing the Bell behind a Curtain or Screen , 
quite out of the Fifties fight; for if then upon ringing 
they make to the place whence the found came, it will, 
neceflfarily follow that they can hear. 
Concerning the Gills of Fifties it is ftiewn, that they 
are 
