[pp. 44-45] 'No historical method mentions this type of voice [the voix sombrée] ; it is only since Gilbert Duprez's debut that we have...

‘ARTICLE V. OF THE QUALITIES OF THE VOICE. Q. How many different qualities are there in the voice ? A. The principal are two, the open...

‘A few trials will suffice to prove that every shade of passion, however slight, will effect in a peculiar way the physical condition,...