386 ON A NATURAL SYSTEM 



value be afllgned to thefe letters as in the fore. 

 going examples, ( 138.) and we fhall obtain the 

 following double fpecies. 



jr/, /;/i f /i. 

 //, tm t /j, 

 in/, wt, mi. 



is, it, im. 



Triple fpccics. 



stm % //, smtt //, 

 , ///, //T//, /;/, tmi, 



t i/ f 



fpecies. 

 sttni, ///;/;, 



, WI/lV, 77///V, 7/I///, 7///V/, 

 , J/OT/ f iV/W, ;VW/, I/ff//, 



5 CLXV. Continuation. 



WE are, however, not rafhly to conclude that 

 all the fpccics are cxhaufled in thefe formula? ; 

 for every letter may be varied in many ways, 

 according to the diverfity of the fcveral fpecies. 

 For example, / can be multiplied more than 

 325 times, ( 131, 143). /, indeed, prcfents 



but 



