296 ANIMAL REPRODUCTIONS. 
‘ the fat be fuch as it appears, it may reafonably 
‘ be inferred, that {nails have no eyes, or, if they 
‘have, nature has formed them of minute and 
‘ almoft unperceptible parts ; whence objects are 
‘ feen obfcurely and confufed : but in compenfas 
‘ tion for the dullnefs of this fenfe fubftituting 
‘ the exquifitenefs of touch, by which they can 
‘ diftinguifh thefe fame objects. ‘Therefore the 
‘ ufe of the globe on both large and {mall horns 
‘ may be eafily comprehended : namely, that the 
‘ points of contact may increafe by the furface 
‘ being enlarged; and the exquifitenefs of touch 
‘thus rendered. greater for the ufe and defence 
‘of {nails. But this is only a fimple conjecture 
‘ of mine, ftarted for my own information among 
‘ many others which you will-obferve. 
‘ Let us-return to the organization of the 
‘brain. We have feen that its lobes compote the 
‘ ganglion, as the annular protuberance is form- 
‘ed by the lobes of the human brain. Many 
‘nerves proceed from this ganglion, fome for- 
‘ wards, others laterally ; fome backwards ; and, 
é laftly, others below. We fhall treat only of 
‘ thofe proceeding forward on the head, as parti~ 
‘ cularly belonging to our fubje&. From the an- 
‘ terior part of the middle proceeds a nerve that 
‘ advances in a ftraight line to infert itfelf in the 
‘ pofterior and under part of the oval globe. 
© From the fides iffue two bundles of nerves, one 
. from. 
