(a) Veterinary clinic or animal hospital provided no such building, kennel or exercise runway is closer than fifty feet (50') to the boundary of any R District. Animal runs shall be enclosed on four sides by unpierced fence or wall at least five feet (5') in height.
(b) Nursing or convalescent home.
(c) Non-commercial equestrian stables and riding facilities.
(d) Drive-in theaters.
(f) Hospital and sanitarium of any type.
(g) Any other use which is determined by the Zoning Board of Appeals to be of the same general character as the above uses.