Book: Walter the Farting Dog: 

Warning: This book may cause flatulence. Walter is a fine dog, except for one small problem: he has gas. He can't help it; it's just the way he is. Fortunately, the kids Billy and Betty love him regardless, but Father says he's got to go! Poor Walter, he's going to the dog pound tomorrow. And then, in the night, burglars strike. Walter has his chance to be a hero.

Book: Rough Weather Ahead for Walter the Farting Dog :

Professor Kompressor visits Walter's family, offering a remedy for the dog's digestive disorder: special food that must be mixed in his Kompressatron. Unfortunately, the Professor's cure doesn't work, so Father's combination of ingredients has a strange effect on the pooch- Walter blows up like a balloon and floats out the window! Just when it looks as though Walter's paws may never touch earth again, he encounters a flock of butterflies in distress.