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.
Below is the hind end of a dog that has a severe perineal hernia (Fig 1). When the hernia is opened, small intestine, bladder and prostate were found to be in the hernial sac (Fig 2). These organs were placed back into the abdomen and the hernia was repaired.