[ 2 77 ] 
« Mire fagaces falleret hofpites 
« Difcrimen obfcurum.” Horat. 
♦ 
for, in fuch inftances, the pafiages are not only the 
fame, but the tone. 
Such was the event of the experiment I have be- 
fore mentioned of the linnet educated under a ven- 
golina. 
In my experiment, however, of teaching the fpar- 
row the notes of the linnet, though the fcholar imi- 
tated the paffage9 of its matter, yet the tone of the 
fparrow had by no means the mellownefs of the ori- 
ginal. 
The imitation might therefore be, in fome mea- 
fure, compared to the finging of an opera fong by 
a black-guard, when, though the notes may be pre- 
cifely the fame, yet the manner and tone would dif- 
fer very much. 
Thus alfo the linnet, which I heard repeat the 
words pretty boy , did not articulate like a parrot or a 
mino, though, at the fame time, the words might 
be clearly diftinguittied. 
The education I have therefore been fpeaking of 
will not give new organs of voice to a bird, and the 
inftrument itfelf will not vary, though the notes or 
paflages may be altered almoft at pleafure. 
I tried once an experiment, which might indeed 
have pottibly made lome alteration in the tone of a 
bird, from what it might have been when the animal 
the cafe was defperate. He frequently alfo refufed to prefcribe, 
if the bird felt too light in the hand, or he thought that there 
was not fufficient time to bring about an alteration in the 
dung. 
O O 2 
was 
