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 cost of a TPLO at Colorado Canine Orthopedics in 2015 is $3,180 - $3,380 for average sized dogs (giant breed dogs may incur additional cost). The average cost of a TPLO at Colorado Canine Orthopedics in 2015 is $3,180 - $3,380 for average sized dogs (giant breed dogs may incur additional cost).