ISAN 
     
     ATURALIST 
     
    
   
   
    
       
     
    
   
   
    
       
     
    
   
   
    
       
     
    
   
   
    
       
     
    
   
   
    
          
     
    
   
   
    
     No. 108 
     
     January - February 
     
     1990 
     
    
   
   
    
        
     
          
     
        
     
    
   
   
    
       
     
    
   
   
    
        
     
       
     
    
   
   
    
     The newsletter of 
     
     The Natural History Society