XX PREFACE, 



sucli a case they will be enabled, by means 

 of this small dictionary, to make out at 

 least the principal characteristics of any spe- 

 cimen they may be inclined to examine. 

 For the same reasons, a table of colours has 

 been considered worthy of insertion, and 

 has, therefore, been attempted, though with- 

 out any very sanguine hope of success. So 

 much depends upon the modification of 

 ideas, with respect to colours, in themselves 

 so various, and so few people possess pre- 

 cisely the same impressions of mixed and 

 blending tints, that it becomes nearly im- 

 possible to establish any thing like a stand- 

 ard, by which the external tracings of a 

 single subject of natural history shall be ac- 

 curately, and intelligibly described. 



The Latin terms of colour are in general 



