CHAPTER I.—Htirupo,—The Leech, 
a 
§ 
ANALYTICAL INDEX 
TO VOL. I. OF 
THE POWERS OF THE CREATOR. 
PAGE | 
The Leech known from the remotest antiquity, ib. 
The Medicinal Leech, ib. 
The genus Hirudo, : 2 
Treatises of Rawlins, Johnson, Stefano, Delle Chiaie, and Tandon; ib. 
No good illustration of the Leech, ib. 
The tribe absolutely sui generis, ib. 
The Leech, in general, described, ib. 
1. Hrrupo muricata,—The Skate Leech, 3 
Size, form, and powers described, : ib. 
Of a dull, dingy colour, varying from oil green to hamats 4 
Has no horns, as asserted by some authors, ib. 
Preys on the living skate and other flat fish, ib. 
Cannot be induced to feed in confinement, ib. 
An error that the Leech lives upon suction, ib. 
It is quiescent during the day, 5 
Fond of society of their own species, ib. 
Vesicles issued from the ring of the neck of some , of thern: ib. 
These, a variety of the same race, might have been mistaken for 
short horns, 6 
Perpetuation, 6 ib. 
The Skate Leech Patient of eheunetes 8 
Occasionally dies of repletion, ib. 
Plate I. explained, ib. 
2. Hrrupo virata,—The Belted Leech, 9 
Size, form, colour, organs, Ke., ib. 
Generally remains erect on the adhering peer ib. 
Capsules, 10 
VOL. Ii. a 
