Errata. 
On page 71, line 31, for 74 read 73 
" » 99» >, 3*> ^r moments read movements 
» H5» ,, 22, „ are „ i s 
m x 28, „ 6, „ have - has 
»' " I 3 I » , 5 20, „ proves „ prove. 
Kyke-over-all, referred to on page 8 7i line 10, is situated at the June 
on of the Mazaruni and Cuyuni. 
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