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 A recent study of more than 1.5 million hernia operations found that the average cost for an open hernia surgery ranged between $4,200 and $6,200. 2  Those with insurance can expect to pay typical deductibles and coinsurance rates. 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.