Century VIII. 



W7 



draw his Breath. Another Caufe may be, for that Cold calleth the Spirits to 

 fuccour; and therefore they cannot fo well clofe , and go together in the 

 Head;\vhkh is ever requifue to Sleep. And for the fame Caufe,Paine 5 and 

 Noife hindet Sleef,&n6. Darkneft (contrariwifc)furthereth Sleep. 



SomeNoifes(whcrcof we fpake in the 1 1 2 Experiment Sleeps the 

 BlmingoixheWind, the Trickling of Water , Hummingof Bees , Soft Singings 

 Reading, &c The Caufe is, for that they move in the Spirits a gentle at- 

 tention; and whatfoever moveth attention , vvithouttoo much Labour, 

 ftillcth the Natural and difcurfive Motion of the Spirits. 



Sleep nourifheth,or at leaft preferveth Bodies,a Jong time,without other 

 Nourifhment. Beafls that Sleep in Winter ,(as it is noted of wild-Bears,)du- 

 ring their Sleep wax very fat,though they eat nothmg.Bats have been found 

 in Ovens, and other Hollow clofe Places, Matted one upon another; and 

 therefore it is likely that they Sleep in the Winter time, and eat nothing. 

 ^«^,whether Bees do notfleep all Winter, and fpare their Honey? Butter- 

 flies, and other Flies,do not only Sleep,but lie as dead all Winter ; and yet 

 with a little Heat of Sunne,or Fire,revive againe. A Dormmf e,bothW inter 

 and Summer,will Sleep fome dayes together,and eat Nothing. 



To reftore Teeth in Age ^ were Magnate Natune. It may be 

 thought or. But howfoever 5 the Nature of the Teeth delerveth 

 to be inquired of, aswelJ as the other Parts of Living Creatures 

 Bodies. 



THere be Five Bans in the Bodies of Living Creatures , that are of hard 

 Subftances-, the S£«#;the Teetb$the Bones- 3 the Homs&nd the tfailes.Thc 

 greateft Quantity of Hard Subftance continued, is towards the Head. For 

 there is the Skull of one entire Bone-jhere are the Teeth$there are Maxillary 

 Bones-jhere is the hard bonejhat is the inftrument of hearing, and thence if- 

 fue the Horns: So that the Building of Living Creatures Bodies , is like the 

 Building ot aTimber-Houfe,xvhere the walls,and other parts haveColumns 

 and Beams; But the Roofe is in the better fort of Houfes,all Tile,or Lead: 

 or Stone. As for Birds, they have three other hard Subftances proper to 

 them;The M,which is of the Like Matter with the Teeth\ for no Birds have 

 Teeth: the Shel of the Egge: and their Quills : for as for their Spurre, it is 

 but a Naile. But no Living Creatures, that have Shells very hard; (as Oyflers, 

 Cocles,Muftles,Shalops,Crabs,Lobflers,Cra-fi[h,Shrimps, and cfpecially the Tor- 

 toife,)have Bones within them,but only little Grifiles. 



Boneshaker full growth, continue at a ftay ; and fo doth the Skull^Horns, 

 in fome Creatures, are caft, and renued : Teeth ftand at a ftay , except their 

 wearing : as for Nails,they grow continually: and Bills and Beaks will over- 

 grow,and fometimes be calt;as in Eagles and Parrots. 



Moft of the Hard Subftances flie to the Extremes of the Body ; as Skull, 

 Horns, Teeth, Nails, and Beuks: Onely the Bone s arc more inward , and clad 

 with Flejh. As for the Entrailes, they are all without Bones-, fave that a Bone 

 is (fometimes) found in the Heart of a Stag and it may be in fome other 

 Creatures. 



The Skull hmh Brains , as a kind of Marrow, within it. The back-bone 

 hath one Kind of Marrow^ which hath an Affinity with the braine ; and 0= 

 ther bones of the body have another. The Jaw-bones have no Marrow Seve- 

 red , but a little Pulp of Marrow diffufed. T etth likewife are thought to 



P have 



745 



74$ 



Experiment in 

 Confort, tou- 

 ching Teeeh 

 and Hard Suh- 

 fiances in the 

 Bodies of Li- 

 ving Creatures. 



747 



748 



749 



750 



