The Masika, or great vernal rainy season which follows up the sun as it passes to the north, broke over the island of Zanzibar this year early in April, and was expected to last for its normal period of forty days. For this to subside we had now to wait here as patiently as we could, occupying the spare time so forced on us in purchasing an outfit and in preparing for the journey. It was highly interesting to see here at this season of the year, as we well could do, so near the equator, the regular systematic procession of the wind and rain following up the sun in its northward passage. The atmosphere, at this time and place, was heated and rarefied by the vertical rays of the sun; that produced a vacuum, which the cold airs of the south taking advantage of, rush up to fill, and with their coldness condense the heated vapours drawn up daily from the ocean and precipitate them back again on the earth below. This occurring and continually repeating day by day, for a certain time, nearly in the same place, fills the air with electric excitement, which causes thunder and lightning to accompany nearly every storm. The atmospheric air's being so surcharged with electricity was palpably felt by the nervous system; at any rate, judging from myself, I can only say I experienced a nervous sensibility I never knew before, of being startled at any sudden accident. A pen dropping from the table even would make me jump. Whilst stopping here, the Colonel's house was one continuous scene of pleasure and festivities. The British Consulate was the common rendezvous of all men: Arab, Hindi, German, French, or American, were all alike received without distinction or any forced restraint. Indeed, the old Consul literally studied the mode of making people happy; and Zanzibar, instead of being an outlandish place, such as to make one wonder how men could exile themselves by coming here, was really a place of great enjoyment. The merchants, on the other hand, were not less hospitably inclined, and constantly entertained and gave very handsome dinners.