More than a few of the threads we pursued over the past 
year concerned depreciation.   Of late, I've been thinking 
about the topic again.  One curious aspect involves the  
manner in which accountants deal with depreciation in keeping 
books.   As we know, there are various ways in which an  
item can be depreciated -- straight line, sum of the digits, 
double declining balance, etc.   Where and how did the  
various techniques arise?   Or, is there such a thing 
as the "history of accounting thought" that traces the  
origins of these techniques?    
 
 
Hope the summer is going well. 
 
 
John