Contains:

"The Sleeping Dog" by Ross MacDonald
"The Enemy" by Charlotte Armstrong
"The Dog Who Hated Jazz" by William Bankier
"Silver Blaze" by Sir Arthur Conan Doyle
"The Dark Road Home" by Paul W. Fairman
"The Emergency Exit Affair" by Michael Gilbert
"How Come My Dog Don't Bark?" by Ron Goulart,
"Dispatching Bootsie" by Joyce Harrington
"Captain Leopold Goes to the Dogs" by Edward D. Hoch
"Lincoln's Doctor's Son's Dog" by Warner Law
The Dogsbody Case" by Francis M. Nevins, Jr.
"Puzzle for Poppy" by Q. Patrick
"Chambrun Gets the Message" by Hugh Pentecost
"Raffles on the Trail of the Hound" by Barry Perowne
"Coyote and Quarter-Moon" by Bill Pronzini and Jeffrey Wallman
"Sellin' Some Wood" by John Rudin
"A Dog in the Daytime" (aka "The Body in the Hall" and "Die Like a Dog") by Rex Stout.