Botch up

"What the school books say about the united efforts of the two great Rossums is all a fairy tale. They used to have dreadful rows. The old atheist hadn't the slightest conception of industrial matters, and the end of it was that young Rossum shut him up in some laboratory or other and let him fritter the time away with his monstrosities, while he himself started on the business from an engineer's point of view. Old Rossum cursed him and before he died he managed to botch up two physiological horrors. Then one day they found him dead in the laboratory. And that's his whole story."