398 NATURAL HISTORY. 



eometh. And again, the renewing of horns. But 

 yet that hath not been known to have been pro 

 voked by art ; therefore let trial be made, whether 

 horns may be procured to grow in beasts that are not 

 horned, and how ? And whether they may be pro 

 cured to come larger than usual, as to make an ox 

 or a deer have a greater head of horns ? And whether 

 the head of a deer, that by age is more spitted, may 

 be brought again to be more branched ? for these 

 trials, and the like, will shew, whether by art such 

 hard matter can be called and provoked. It may be 

 tried, also, whether birds may not have something 

 done to them when they are young, whereby they 

 may be made to have greater or longer bills ; or 

 greater and longer talons ? And whether children - 

 may not have some wash, or something to make their 

 teeth better and stronger ? Coral is in use as art 

 help to the teeth of children. 



Experiments in consort touching the generation and 



bearing of living creatures in the womb. 

 758. Some living creatures generate but at certain 

 seasons of the year, as deer, sheep, wild conies, &c. 

 and most sorts of birds and fishes : others at any time 

 of the year, as men ; and all domestic creatures, as 

 horses, hogs, dogs, cats, &c. The cause of generation 

 at all seasons seemeth to be fulness : for generation is 

 from redundance. This fulness ariseth from two 

 causes ; either from the nature of the creature, if it 

 be hot, and moist, and sanguine ; or from plenty of 

 food. For the first, men, horses, dogs, &c. which 



