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 The average ACL repair surgery cost for a dog itself is going to range anywhere from $1,000 to as much as $4,000.2  Since there are so many types of ACL surgeries, itâs hard to pinpoint a specific range itself. 3  For a larger dog such as a German Shepard, the price tag can easily reach the $3,000 to $5,000 mark. The average ACL repair surgery cost for a dog itself is going to range anywhere from $1,000 to as much as $4,000.