36 
PHYSICAL ASPECTS OF ADEN. 
The differences in temperature in different parts of the peninsula are 
considerable. In July and August, according to Haines, “ within the 
town of Aden the thermometer varies from 84° at sunrise to 104° with 
the sun past the meridian, during the westerly winds, while at the W. 
point, forming the entrance to the harbour, the thermometer varies from 
74° to 88° at the same period. This difference is caused by the winds 
crossing the high mountain before it reaches the town of Aden, whereas 
at the W. point it meets with no obstruction.” 1 
The following thermometrical readings confirm the above statements. 
They give the average temperature during the year at the three military 
positions : Camp, Isthmus, and Steamer Point, as given by Hunter, 1. c. 
Camp. 
Months. 
1873-74. 
1874-75. 
1875-1876. 
Maxi- 
mum. 
Mini- 
mum. 
Mean. 
Maxi- 
mum. 
Mini- 
mum. 
Mean. 
i 
Maxi- 
mum. 
Mini- 
mum 
Mean. 
April . • 
88 
82 
85 
92 
81 
86-5 
86 
77 
81'5 
May • 
91 
86 
88-5 
97 
86 
91-5 
90 
80 
85 
June' • 
95 
90 
925 
102 
89 
95*5 
94 
84 
89 
July . 
97 
90 
93*5 
100 
80 
90 
96 
86 
91 
August 
96 
90 
93 
95 
75 
85 
94 
84 
89 
September . 
93 
88 
90*5 
95 
84 
895 
91 
81 
86 
October . 
89 
84 
86'5 
92 
73 
82 5 
87 
78 
82-5 
November 
85 
84 
845 
85 
70 
77-5 
85 
76 
80-5 
December 
81 
79 
80 
84 
67 
755 
82 
72 
77 
January 
80 
77 
78'5 
84 
66 
75 
78 
71 
74-5 
February 
83 
79 
81 
82 
71 
76-5 
78 
72 
75 
March . 
84 
81 
825 
86 
75 
80-5 
82 
79 
80-5 
Average . 
88-5 
841 
83*3 
911 
76-5 
88*8 
869 
783 
82*6 
Haines, S 
B.t Memoir of the South and East Coasts of Arabia. In Jo urn. Roy, Geogr. 
<oc„ Yol. 15 (1845), 101-160. 
