[ 754 ] 
« '’Town,” that if the performer does juffice to the 
compolition, the hearer can fcarce help fancying him- 
felf affeded with the very fenfations, with which the 
starts of frenzy are there pictured. 
2 dlv, If I have been right in aligning a greater 
antiquity to the mufical dodrine, than to the har- 
monic, the effeds of the modes muff, in earlier 
times at lead, be referred to the former. And this 
carries with it an argument for later times alfo; for 
the old principle of the modes could not be hidden y 
changed. And though it may be urged, from the in- 
troduction of the eight fpurious modes, that the har- 
monic dodtrine came, in time, to be confidered as a 
principle independent of the other, _ this will only 
prove a corruption of the better doCtrine, which may 
fafely be admitted ; though that the mufical dodrine 
was ever quite difufed, unlefs in very late times in- 
deed, I much doubt, as fome traces of it are found in 
almoft all the writers come down to us. 
-idly, Ptolemey’s rejeding the eight modes, that 
wanted the fupport of the mufical doCtrine, is an- 
other proof. For, if the harmonic dodrine had been 
the more effential of the two, thofe modes ought to 
have been preferved. Nor does the admiffion of ix 
of them, by the Ariftoxenians in earlier times, weaken 
the force of this argument : for though the rejeding 
them is conclufive, againft the harmonic dodrine, as 
far as any weight is allowed to the opinion of the re- 
jeder, the argument from their admifhon will not 
conclude in its favour, till it be proved, that in the 
.ufe the fpecies of diapafon afforded by thefe modes 
was not attended to, but only the order fiom the p r °i" 
■lambanomcnos, in power of each, as the favouiers o 
the 
