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.
How much is it? The average ACL repair surgery cost for a dog will range anywhere from $1,000 to as much as $5,000. For a larger dog, such as a German Shepard, the price tag can easily reach the $3,000 to $5,000 range. For smaller dogs under 25 pounds, the price will range anywhere from $1,000 to $2,500.