OF FOSSILS. 303 



In like manner, orycloht-ia implies a more cxaft 

 denomination of the fciencc of fulfils than mine-' 

 rafagra, Pctrefaclum QV petrlficatitm^ falls near- 

 ly under the lame criticifm. But as here we 

 have no better fynonimous word to fubftitutc, 

 \ve mull be contented with fueh as cullom has 

 eftabiiihed. Words, like coin, owe their cur- 

 rency to prefcription. 



{. cxc. How ur (ire to proceed without proper em- 

 phatic Names. 



As it is not cafy to apply names exacflly 

 txprcflive of the thing defined, we arc to 

 adopt fuch as having no determinate meaning 

 may have their ienle afcertained by definition. 



5 cxc r. Names derived from the Authors of n civ 

 Difcoveries. 



AMONG botaniAs and anatomifts the memo- 

 ry of difcovcrcrs is perpetuated in particular de- 

 nominations ; it may, therefore, be a qucClion, 

 whether among chcmhts, where the reward of 

 new fads is attended with greater inconveni- 

 ence, it would be proper in the fame manner to 

 teilify a grateful fcnfe of obligation? Tome, 

 indeed, it fecins to be practicable, and without: 

 ny impropriety ; but as it often happens, that 

 the fame difcovcry has been made by different 



individuals 



