How should I go about introducing my new kitten to my dog?

True to form, my husband has brought home another animal without any forewarning.

This time it was a tiny orange tiger-striped kitten. He’s from a feral litter, and was taken in by hubby’s boss. Her older cats have rejected the new kittens, so she’s rehoming them. Now we have Oscar.

I like to name my animals after scientists or literary figures, so any suggestions as to how to make Oscar work would be fantastic.

He’s currently sequestered in my bathroom with his hard-shell cage with plenty of comfy bedding, a fresh litterbox, lovely wet food and water.

Russell is free to wander the house, but he is crate-trained.

I grew up with cats, but have never had cats and dogs at the same time. What is the best way to introduce the two, to help foster a good friendship between them?