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

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