Describir: Rules for the cataloguing of slides in the Liverpool School of Architecture /

  ______    ______    _____     ______   _    _    __   __    _  __   _    _   
 /_   _//  /_   _//  |__  //   /_   _// | || | ||  \ \\/ //  | |/ // | || | || 
   | ||     -| ||-     / //     -| ||-  | || | ||   \ ` //   | ' //  | || | || 
  _| ||     _| ||_    / //__    _| ||_  | \\_/ ||    | ||    | . \\  | \\_/ || 
 /__//     /_____//  /_____||  /_____//  \____//     |_||    |_|\_\\  \____//  
 `--`      `-----`   `-----`   `-----`    `---`      `-`'    `-` --`   `---`