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.
1 An umbilical hernia can also be repaired through laparoscopic or open surgery, which can cost an individual without insurance between $4,000 and $11,000. 2  The average individual with insurance can expect to pay between $700 and $2,000.