SECT. XVI. 8. 3. OF INSTINCT. 1 13 



3. Of Tender Pleasure. 



The firft moft lively impreflion of pleafure, that the infant 

 enjoys after its nativity, is excited by the odour of its mother's 

 milk. The organ of fmell is irritated by this perfume, and the 

 lacrymal fack empties itfelfinto the noftrils, as before explained, 

 and an increafe of tears is poured into the eyes. Any one may 

 obferve this, when very young infants are about to fuck ; for at 

 thofe early periods of life, the fenfation affe&s the organ of 

 fmeil, much more powerfully, than after the repeated habit of 

 fmelling has inured it to odours of common itrength : and in. 

 our adult years, the ftronger fmells, though they are at the fame 

 time agreeable to us, as of volatile fpirits, continue to produce 

 an increafed fccretion of tears. 



The pleafing fenfation of fmell is followed by the early af- 

 fection of the infant to the mother that fuckles it, and hence the 

 tender feelings of gratitude and love, as well as of hopelefs grief, 

 are ever after joined with the titillation of the extremity of the 

 lacrymal duds, and a profufion of tears. 



Nor is it fingular, that the lacrymal fack (hould be influenced 

 by pleafing ideas, as the fight of agreeable food produces the 

 fame effect on the falivary glands. Ac dum vidimus in fom- 

 niis lafcivse puelhe fimulacrum tenditur penis. 



Lambs make or wriggle their tails, at the time when they firft 

 fuck, to get free of the hard excrement, which had been long 

 lodged in their boweis. Hence this becomes afterwards a mark 

 of pleafure in them, and in dogs and other tailed animals. But 

 cats gently extend and contract their paws when they are pleaf- 

 ed, and purr by drawing in their breath, both which refemble 

 their manner of fucking, and thus become their language of 

 pleafure, for thefe animals having collar-bones, ufe their paw$ 

 like hands when they fuck, which dogs and (heep do not* 



4. Of Serene Pleafure. 



In the action of fucking, the lips cf the infant are clofed 

 around the nipple of his mother, till he has filled his ftomach, 

 and the pleafure occadoned by the ftimulus of this grateful food 

 fucceeds. Then the fphincter of the mouth, fatigued by the 

 continued action of tucking, is relaxed ; and the antagonift muf- 

 cles of the face gently acting, produce the fmile of pleafure : 

 as cannot but be feen by all who are converfant with children 



Hence this fmile during our lives is aflbciated with gentle 

 pleafure ; it is vifible in kittens, and puppies, when they are 

 played with, and tickled ; but more particularly marks the hu 



VOL. I. O 



