Ll b Mr. Hunter's Obfervations on the 
branches to the vifcera, and the lumbar arteries, which are like- 
wife very large for the lupply of that vaft mafs of mufcles 
which moves the tail. 
In our examination of particular parts, the fize of which is 
generally regulated by that of the whole animal, if we have only 
been accuftomed to fee them in thofe which are fmallor middle- 
lized, we behold them with aftonifhment in animals fo far 
exceeding the common bulk as the Whale. Thus the heart 
and aorta of the Spermaceti Whale appeared prodigious, being 
too large to' be contained in a wide tub, the aorta mea- 
furing a foot- in diameter. When we confider thefe as applied 
to the circulation, and figure to ourfelves, that probably ten 
or fifteen gallons of blood are thrown out at one ftroke, and 
moved with an immenfe velocity through a tube of a foot dia- 
meter, the whole idea fills the mind with wonder. 
The veins, I believe, have nothing particular in their flruc- 
ture, excepting in parts requiring a peculiarity, as rn the folds 
of the Ikin on the bread; in the Piked Whale, where their elafti- 
city was to be iacreafed. 
Of the Larynx. 
The larynx in mod; animals living on land is a compound 
organ, adapted both for refpiration, deglutition, and found, which 
lad is produced in the actions of refpiration ; but in this tribe 
the larynx, I fuppofe, is only adapted to refpiration, as we do 
know that they have any mode of producing found. 
It is compofed- of os hyoides, thyroid, cricoid, and two ary- 
tenoid cartilages, with the epiglottis. It varies very much in 
dructure and fize, when compared in animals of different 
genera. Thefe cartilages were much fmaller in the Bottle- 
nofe of twenty-four feet long, than in the Piked Whale of 
feventeen feet, while the os hyoides was much larger. 
In 
