246 PROFESSOR SMITH’S JOURNAL. 
According to the notices which are to be found on some 
maps, there can be no doubt that the four islands to the 
N.W.N. are of the same submarine volcanic nature. . 
Mayo and Bonavista may be compared with the lower 
part of St. Jago, and Fogo is in all likelihood the only 
volcanic one. ‘The climate of the island is delightful, 
and considering its situation within the tropics, it is re- 
markably temperate. Of this the nature of the vegetation 
gave evident proofs. There were found very few tropical 
plants m proportion to the number of those which are 
common in temperate countries. The temperature which 
has been given for its wells probably does not much differ 
from the mean temperature (isothermos) of the island 
It was with difficulty I could draw the information from 
the inhabitants that it is now about a month or six weeks 
since. the rainy season commenced. The Adansonia, 
Jatropha, and Ziziphus were already stripped of their 
leaves, and the Mzmosa was producing new ones. Almost 
all annual plants were decayed by drought. The rainy 
season was said to last from five to six months, and to 
continue to the end of September. ‘The atmosphere, after 
being heated in traversing the continent of Africa, is after- 
wards fully saturated in passing over the sea, and arrives 
at this island in a humid state, so that the fog comes down 
at the slightest degree of cooling. The mountains, even 
those of less height, are almost constantly covered with 
clouds. At the height of 1400 to 1500 feet, the ap- 
pearance of the country is completely changed. The 
hills are covered with grass of a tropical form and magni- 
