C 51 ) 



osflcula inveniunttir , quae in homine entimera* 

 vimus, quorum, in variis fpeciebus formae ec 

 ficus differentias omnes hie referre opus non erif 

 In fimiis veto ilia non adesfe putac Job. Wilh- 

 Linck CO j ec in ornithorhyncho paradoxo, fe- 

 cundum Home (2), tancura duo inveniuntur 

 osficula a Caro (3) delineata. 



idves. Cuvier et Carus (4) flatuunt avibus 

 unum osficulum duobus conflare procesfibusj 

 quorum alter tympani membranae affigeretur; 

 alter vero cavum tympani in trans, in laminam 

 osfeam abirec, fenestram vesdbuli, ad inflar (la- 

 pedis in homine, implentem. Procesfum vero 

 ilium priorem, inavium craniis, quae disfecavi, 

 non inveni ; itaque columellae feu osficuli audi- 

 tus figuram ita potius fefe habere crederem, uc 



il- 



(1) cf. verfuchc eincr gefcliichte und Phyfiologie 

 dci Thiere, 1805. 



(2) Phil, trans. 1802 p. 79. It has only two 

 bones , one pasting directly from the membrane to- 

 wards the foramen ovale , upon which there is a fe- 

 cond bone , imperfectly resiembling the flapes , ha- 

 ving a flat fiirface of a circular form upon the orifice 

 and a small neck by which it is united to the -other 

 bone." 



(3) Carus 1. c. Tab. XIX. fig. 9. a. 



(4) Idem. 1. c. Tab. XV. fig. 6. c. 



D 2 



