"And so, amid the laughter gay,
Trotted my hero off,—old Tray,—
Till somebody, prerogatived
With reason, reasoned: 'Why he dived,
His brain would show us, I should say.
"'John, go and catch—or, if needs be,
Purchase—that animal for me!
By vivisection, at expense
Of half-an-hour and eighteenpence,
How brain secretes dog's soul, we'll see!'"