His pointed head turned to and fro with ferret-like movements.
"The Lamp in the Desert"
Ethel M. Dell
"I believe you are right," said Tom, "and I'm only sorry I can't be here to help ferret the thing out."
"Grace Harlowe's Senior Year at High School or The Parting of the Ways"
Jessie Graham Flower
To ferret out the processes by which the heavenly bodies have been brought to their present condition we seek first of all for lines of development now in progress which tend to change the existing order of things into something different, and, having found these, to trace their effects into both past and future.
"A Text-Book of Astronomy"
George C. Comstock