i84 C O N C H O L O G Y. 



It is this family that is the true Sailor, 

 the very Nautilus or Pompilus of the 

 Greeks and Latins, and which our cele- 

 brated Engliih poet refers to, 



** Learn of the little Nautilus to fail :** 



for I do not find that it is proved in any fa* 

 tisfaffcory manner, that the other kind, oi? 

 pearly Nautilus, ever fails, or navigates his 

 Shell. 



- Pliny ^, as ufual, gives a concifebut ele^ 

 gant recital of its navigation. It fails, fays 

 he, after having difcharged or pumped 

 the water from its Shell, aloft on the fea, 

 extending a membrane of an admirable 



^ Plinii Hift. Nat. lib. ix. c. 2,9- Inter pr.aeclpusi 

 autem miracula, eft qui vocatur Nautilos, ab aliis Pom- 

 pilos. Supinus in fumma aequprum pervenit, ita {q 

 paulatim fubrigens, ut emifTa omni per fiftulam aqua, 

 velut exoneratus fentina, facile naviget, Poftea prima 

 duo brachia retorquens, membranara inter ilia mirsB 

 tenuitatis extendit. Qua velificante in aura, ca^teris 

 fubremigans brachiis, media cauda, ut gubernaculo, fe 

 regit. Ita vadit alto, liburnicarum ludens imagine, 6c 

 |i quid pavoris interveniat, haufta fe mergens aqua. 



thinnefs^ 



