190 IMPROVEMENT 1n THE 
fected by any change of weather, they remain as ftandards. 
I take it for granted that any perfon at all accuftomed to 
mufical founds can tell when one tone is zm unifon with 
another; and that a very little pra€tice will enable him to 
tune one found an oéfave to another, thefe conchords are fo 
manifeft that they cannot eafily be miftaken. There is then 
nothing to be done but to tune the twelve ftrings in uni- 
fon with the twelve forks ; this will fix the fcale, or tem- 
perature for one o€tave, which is the whole difficulty ; the 
reft of the inftrument is eafily tuned by unifons and oc- 
taves to the {fcale, fo afcertained*. 
Having, I hope, fully accomplithed the defign I fad in 
view when I turned my thoughts to this fubje@, I fhall 
now take leave of it; and fhall be highly gratified if I 
find others benefited by my attentions, although in a mat~ 
ter of no very ferious import. 
Nov. 1784. 
Defcription of a further Improvement in the Harp- 
SICHORD. 
Rea Tovey IN a former paper read before the fociety, 
refpeting an improved method of quilling a 
HARPSICHORD, I made fome apology for troubling you 
with a fubject not ftridly within the limits of your view 
as a philofophical fociety, and which might appear to fome 
of {mall importance. At the fame time | took formal leave 
of a purfuit which had accidentally engaged my attention, 
and which Lhad obtruded upon your’s. Notwithftanding 
this, I find myfelf under a neceflity of again requefting 
your indulgence, whilft I defcribe a difcovery I made in 
Auguft laft, of a ftill further improvement to the fame 
purpoie, 
Having 
* My fet of forks are tuned from the middle C fharp to the C above, inclufive. 
ve 
