What was JJ Thomson Atomic theory? Joseph John Thomson discovered the electron in 1897. In 1904,  Thomson suggested a model of the atom as a sphere of positive  matter in which these electrons are positioned â¦by electrostatic  forces.
Cost of Perineal Hernia in Dogs. Stool softeners for dogs are usually $15 for 40 soft chews. Consult your veterinarian before trying human stool softeners on your dog. Enemas ($4 for a 4 pack) are another option.
- Connie Masterson, GA. Treatment cost 2016 for testing generally runs about $70.00 per testing visit (or $1200 over the average life span of a dog). This figure does not include additional wellness checks, etc. that can begin to stack up on cost rather quickly.