DIALLING. 
DECLINATOR. 
  
7 B 4 
  
  
    
   
  
     
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m——————\\ 
EQUINOCTIAL DIAL. 
Fig.4. 
  
  
     
  
HORIZONTAL DIAL, 
Fig.8. 
  
      
   
  
LPublished as the Ac 
't directs, 1809, by Longman, Hurst, Rees & Orme, 7 
- 
  
T 
VERTICAL SOUTH DIAL. 
  
  
aternoster Row. 
Engraved by Wilson-Lonrt 
  
  
  
  
  
  
  
  
  
  
  
     
    
     
  
  
  
  
  
  
  
  
  
  
  
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