static class functions and variables not playing nicely

Why am I getting undefined refferances to all my static members of the class? Even if I chop it all down to just the LOADED = ture; line I still get an undefined refferances.

Code:

class Some_Class
{
public:
static void LOAD_DATA(char *data_file_path)
  {
      LOADED = true;
      ifstream stream;
      stream.open(data_file_path);
      stream>>nmbr;
      infolist = new weapon_info*[nmbr];
      for(int i=0;i<nmbr;i++)
      {
         infolist[i] = new weapon_info;
         stream>>infolist[i]->id
               >>infolist[i]->mdmg
               >>infolist[i]->xdmg
               >>infolist[i]->range
               >>infolist[i]->speed
               >>infolist[i]->hands;
      }
  }

  private:
  static int nmbr;
  static bool LOADED;
  static weapon_info **infolist;
  int min_dmg, max_dmg;
  int hands;
  int speed;
  int range;

};

Static members must also be declared independently...outside the class...because no memory is allocated for them (all, not only the static ones...but the others get it from objects) when the compiler goes through the class declaration...

Ahh ok I see thanks. Makes sense now that I think about how things work.