FRANCIS WILLUGHBY. 
25 
The Unclean. 
All such as are defective in one or both of 
these requirements. 
III. Birds. 
These are subdivided into, 1. Land birds; 
2. Those of the air ; 3. Those of the water, not 
web-footed ; and these last are again farther 
divided into, (1.) Those which prey on living 
game of all kinds ; (2.) Those that feed on dead 
prey ; (3.) Those that feed on fish. 
The Clean. 
Including all those which subsist on vegetable 
food. 
The Unclean. 
Birds of prey generally. 
IV. Reptiles. 
Unclean. 
All creatures that creep, going upon all four, 
and whatsoever goeth on the belly, or whatso- 
ever hath more than four feet, excepting, 
Those winged insects, which, beside four 
walking legs, have also two longer springing legs, 
pedes saltatorii ; these, under the denomination of 
locusts, are declared to be clean. 
