166 
SOUTHERN CRUISE. 
Immediately after leaving Orange Harbour, dysentery made its 
appearance on board, and ran through the whole ship's company. 
Some of the officers were also affected. It proved of a very mild 
type, and readily yielded to medical treatment. Upon our arrival at 
Valparaiso it had entirely disappeared. The medical officers were 
unable to account for it, the health of the ship's company having been 
very good during oar stay at Orange Harbour. It was not thought 
to be owing to the water, as they had been using it for two months 
without any bad effect, but I think must be imputed to the cold and 
wet we experienced the first part of the passage. 
On the 10th we made the island of Mocha, The northerly wind 
continued until the 11th of May, when we had a gale for several 
hours. The barometer indicated this gale by a fall of -300 in. This 
seemed to break up our adverse winds, and we were shortly after- 
wards enabled to lay our course. This was the first fair wind for 
nine days, the head winds having continued from the 2d till the 11th 
instant. 
On the 13th, in latitude 36°, we took the trade winds ; Cape pigeons 
and albatrosses still continuing with us. 
On the 15th we made the land off Valparaiso, and before noon 
anchored in the bay, where we found the Peacock, and received 
tidings that the Relief had sailed with the store-ship Mariposa for 
Callao. The Porpoise arrived on the 16th, and the Flying-Fish 
reached Valparaiso on the 19th, after having experienced extremely 
boisterous weather. 
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