I am not ignorant that the _Italians_ pretend to a mathematical exactness in their designations of one particular sort of character among them, from the _forte_ or _piano_ of a certain wind-instrument they use, --which they say is infallible. 
I know that the Italians pretend be able to exactly measure one particular sort of character, from the forte or piano of a certain wind-instrument they use, which they say is infallible. 