170 
of July last, being at noon in 2 ° 51' W., a little to the west- 
ward of Cape de Gatta, she experienced so dense a fog from 
day-break to nearly four p.m., that the engines had to be run 
slow, and on this voyage on Sunday morning last a few hours 
after leaving Gibraltar, and between that place and Malaga, we 
ran, about 6 a.m., into a dense fog, which lasted, with short 
intervals of comparatively clear weather, until a little after 
1 1 a.m. The fog was lying in dense lanes, with clearer weather 
between them, and by a rough approximation of its height, 
made by noting how far it extended up the mountain sides 
during the intervals when the weather with us cleared, ex- 
tended upwards about 4,000 feet. Barometer about SOTOOin. 
The ship had to be run slow and service dispensed with. I 
see that Smyth in his “ Mediterranean” only mentions fogs in 
the Syrtis. Our captain has made more than seventy voyages 
up the Mediterranean, and considers the occurrence of fogs 
where Ave met Avith them very rare indeed. Hence, I hope 
that this may be of interest to you. Of course the Aveather 
Avas calm. 
