20 



both by Government and by private persons ; the former is 

 a forced, the latter a free culture. 



The Government-culture yielded during the last 

 dozen years, as follows: 



The private culture : 

 cols 378801 picols 

 451735 



540403 



227710 



552040 



414384 



253305 



517395 



460469 



It 



284817 

 362671 

 318185 

 195116 



