378 NATURAL HISTORY. 



715. Joy causeth a cheerfulness and vigour in 

 the eyes, singing, leaping, dancing, and sometimes 

 tears. All these are the effects of the dilatation and 

 coming forth of the spirits into the outward parts ; 

 which maketh them more lively and stirring. We 

 know it hath been seen, that excessive sudden joy 

 hath caused present death, while the spirits did 

 spread so much as they could not retire again. As 

 for tears, they are the effects of compression of the 

 moisture of the brain, upon dilatation of the spirits. 

 For compression of the spirits worketh an expression 

 of the moisture of the brain by consent, as hath been 

 said in grief. But then in joy, it worketh it diversly, 

 viz. by propulsion of the moisture, when the spirits 

 dilate, and occupy more room. 



716. Anger causeth paleness in some, and the 

 going and coming of the colour in others : also trem 

 bling in some : swelling, foaming at the mouth, 

 stamping, bending of the fist. Paleness, and going 

 and coming of the colour, are caused by the burning 

 of the spirits about the heart ; which to refresh them 

 selves, call in more spirits from the outward parts. 

 And if the paleness be alone, without sending forth 

 the colour again, it is commonly joined with some 

 fear ; but in many there is no paleness at all, but 

 contrariwise redness about the cheeks and gills ; 

 which is by the sending forth of the spirits in an ap 

 petite to revenge. Trembling in anger is likewise by 

 a calling in of the spirits ; and is commonly when 

 anger is joined with fear. Swelling is caused, both 

 by a dilatation of the spirits by over-heating, and by 



