135 
COLLECTORS’ NUMBERS. 
By C. Baron Crarke, F.R.S. 
Tue citation of collectors’ numbers was carried far by Nees in 
Wight's Contributions as long ago as 1834 (and very likely before 
result the plants are not named so satisfactorily as by numbers, 
i. e., if the collectors’ numbers are properly affixed, as above 
described. 
But unfortunately, while many of the best collections, as 
Balansa, Mandon, Curtiss, Thwaites, are properly numbered, the 
majority of collections, especia y the uropean collections, are not. 
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