- .. CARIBBEAN 

 SE 



Highland over 1,000 Feet. 

 Upland under IDOO Feet. 

 Lowland under 600 Feet. 



FlG. 1. Map of North America. (Reproduced from Meiklejohn's Oioscopic 

 Map, by permission of Messrs. Meiklejohn & Son.) 



[To face p. 1. 



