...I never yet found anyone to makethem "speak" properly; boys not knowing how to modulate orinspire the breath... 
Montagu Browne 「Practical Taxidermy」
...Liebnitz reported to the French Academy of Sciences, that a dog had beentaught to modulate his voice, so that he could distinctly ask forcoffee, tea, and chocolate...
R. Lee 「Anecdotes of the Habits and Instinct of Animals」
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