300 PROCEEDINGS: BOSTON SOCIETY NATURAL HISTORY. 
with the wastes of Margarita. This northern island is perhaps ina 
condition midway between that of the coast and coastal islands of — 
Venezuela and that of Trinidad, the former being in a condition of 
drought and the latter in a state of excessive moisture for much of the 5 
more on the much larger island not on Margarita. a 
In the small Cayman Islands farther west in the region of the Great — 
Antilles there is also a diversity from Margarita. These islands con- 
sist of Grand Cayman, Little Cayman, and Cayman Brac, two hun- 
dred and eighty-nine kilometers (180 mi.) northwest of Jamaica and 
about the same distance south of the center of Cuba. Grand Cayman 
is twenty-seven kilometers from east to west, six to eight wide at the 
eastern end and eleven to thirteen kilometers (7 to 8 mi.) wide at the 
western end. ‘There is no elevation exceeding fifty meters (150 ft.). 
Some forest land is present, and in the center is considerable bogey 
soil suggesting the presence of sufficient moisture for much vegetative 
growth. Collections of plants have been made on the Caymans by 
Professor C. F. Millspaugh and by Mr. W. Faweett. From the total 
of two hundred and twenty-eight species constituting these lists eighty- 
four are found on Margarita. Five hundred and eighty Margaritan 
plants are not found on the Caymans. This suggests a distinctly 
. is impossible to make a definite comparison of the plants 
Jamaica and Cuba with those of Margarita, for the lists are so ine 
= es It must suffice to say that from the material available for 
parison irison it is certain that a very large part of the plants of Jamaica 
