( 8 ) 



5 18. Of the Nails. 



Their ftru&ure, ufe, &c. 



519. Of the Hairs. 



Manner of their growth and re- 

 ceiving nourifhment. 

 Of their general utility. 



520. Of the alopecia, and plica polo- 

 nica. 



521. Obfervations on the collections 

 of hair found in the ftomachs of 

 animals, and in fome abfceffes, 

 &c. 



522. Of the fuppofed integuments of 

 the antients; 



523. RECAPITULATION of the princi- 

 pal phcenomena of the animal 

 ceconomy, which have been 

 taken notice of in the preceding 

 le&ures. 



CONCLUSION. 



COM- 



