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

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