Nate said he never had no use for pets--lazy critters, eatin' up the victuals and costin' money--but Olivia was dead gone on 'em.

She adopted an old reprobate of a tom-cat, which she labeled 'Galileo,' after an Eyetalian who invented spyglasses or somethin' similar, and a great big ugly dog that answered to the hail of 'Phillips Brooks'; she named him that because she said the original Phillips was a distinguished parson and a great philanthropist.
"That dog was a healthy philanthropist.

When Nate kicked him the first time, he chased him the whole length of the barn.

After that they had to keep him chained up.

He was just pinin' for a chance to swaller Scudder whole, and he showed it.
"Well, as time went on, Olivia and Augustus got chummier and chummier.
Nate give 'em all the chance possible to be together, and as for old Professor Whiskers, all he thought of, anyway, was his blessed flyin' machine.