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.
Surgery can be used to move the hernia back into normal position and to repair the pelvic diaphragm. This surgery can cost $1,500 or more. The veterinarian may decide to castrate your dog (intact males only, obviously) which reduces the size of the prostate and decreases the chances of the hernia reoccurring.