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Nautili^ Sailor Shells. The French call 

 this Kind Le Voilir. It has been con- 

 je£lured that Men fiifr learned the Ufe of 

 Sails 'from the little Filh that inhabits it. 

 It often fwims on the Surface of the Sea, 

 throwing out a Membrane that ferves it 

 inftead of Sail ; and it has other Parts 

 which it ufes as Oars and a Rudder. It 

 is a fpiral Shell, with a large and roundifh 

 Aperture the lail Volution is remarkably 

 large in Proportion to the reft, otherwife 

 not unlike fome Kind of Snails that have 

 deprelTed Clavicles. The whole Shell is 

 by Partitions divided into feveral Cham- 

 bers, which communicate one with the 

 other by Means of a fmall Pipe in each 

 Partition. Among the Specimens, one 

 of the Shells is cut vertically in fuch a 

 Manner as to difcover the different Con- 

 camerations. Worth obferving are the 

 fmall thin Nautilus, the Paper Nautilus 

 from the Mediterranean^ and fome from 

 the E^Ji Indies^ in Size various, many in 

 their natural State, others polilhed. It 



has 



