John W. Campbell 
Invaders From the Infinite [PDF ebook] 

Part of a series focusing on the heroic exploits of scientific dream team Arcott, Wade and Morey, the classic sci-fi novel Invaders From the Infinite has our leading men focusing on two urgent problems simultaneously. A species of canines with artificially advanced intelligence and physical capabilities is in peril, and the trio of scientists is determined to help the dogs. At the same time, they get word of an impending attack that could cripple civilization as they know it, so they muster every resource they can marshal to stop it before it’s too late.