His three comrades were not vocalizing their slumber in snores.
"When Egypt Went Broke"
Holman Day
vocalizing, like every other art, is most easily learned by imitation, and the advantage of the early years, when that faculty is most active, should not be lost.
"Resonance in Singing and Speaking"
Thomas Fillebrown
So she decided not to wait longer, and was turning to continue her climb, when the person behind stopped his vocalizing and called.
"Cy Whittaker's Place"
Joseph C. Lincoln