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.
Cost of Nose Bleed in Dogs. Nose Bleed can be an expensive treatment in dogs and can range from $270.00 to $4167.00 depending on the cost of living and severity of your Dog's nose bleed. On average, the national cost of treating nose bleed in dogs is $2218.00. Ask a veterinarian and get a free answer in 24 hours.