private static void read_physical_description(XmlReader r, PhysicalDescription_Info description)
        {
            while (r.Read())
            {
                if ((r.NodeType == XmlNodeType.EndElement) && ((r.Name == "mods:physicalDescription") || (r.Name == "physicalDescription")))
                    break;

                if (r.NodeType == XmlNodeType.Element)
                {
                    if ((r.Name == "mods:extent") || (r.Name == "extent"))
                    {
                        r.Read();
                        if (r.NodeType == XmlNodeType.Text)
                        {
                            description.Extent = r.Value;
                        }
                    }
                    else if ((r.Name == "mods:note") || (r.Name == "note"))
                    {
                        r.Read();
                        if (r.NodeType == XmlNodeType.Text)
                        {
                            description.Add_Note(r.Value);
                        }
                    }
                    else if ((r.Name == "mods:form") || (r.Name == "form"))
                    {
                        string type = String.Empty;
                        string authority = String.Empty;
                        if (r.MoveToAttribute("type"))
                            type = r.Value;
                        if (r.MoveToAttribute("authority"))
                            authority = r.Value;
                        r.Read();
                        if (r.NodeType == XmlNodeType.Text)
                        {
                            description.Form_Info.Form = r.Value;
                            if (type.Length > 0)
                                description.Form_Info.Type = type;
                            if (authority.Length > 0)
                                description.Form_Info.Authority = authority;
                        }
                    }
                }
            }
        }
 /// <summary> Constructor for a new instance of the MODS_Info class. </summary>
 public MODS_Info()
 {
     // Perform some preliminary configuration
     ModsOriginInfo = new MODS_Origin_Info();
     accessCondition = new AccessCondition_Info();
     originalPhysicalDesc = new PhysicalDescription_Info();
     //physicalDesc = new PhysicalDescription_Info();
     mainTitle = new Title_Info();
     type = new TypeOfResource_Info();
     recordInfo = new Record_Info();
 }