8oo 
Mr. brown’s Defoription of 
They are drove out of their own element by the 
fhark/^, the porpoife^, the albicore^, the bineto^, and 
dolphin to become a prey in ours to the booby' 0 ' 1 , the 
man of war w , and tropic bird' 7 '; but I fufpedt their vi- 
fion in air is not very diftindl, as they .often in their 
flight fall a fh ip-board, or ftrike againft whatever hap- 
pens to be in their way, as was the cafe with all thefe I 
examined : and indeed the form of the cryftalline hu- 
mour of the eye feems to countenance this opinion, be- 
ing of the fame fpherical figure with that of the greateft 
part of thofe fifties that altogether inhabit the watery 
element. 
(d) Squalus Conductor. 
(e) Delphinus Phocama. 
(f) Scomber Thynnus. 
(g) Scomber Pelamis. 
(h) Delphinus Coryphsena. 
(i) Pelicanus Pifcator. 
(k) Pelicanus Aquilus 3 or Man of war bird. 
(l) Phaeton aethereus. 
