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Rh them, and then sent seeds and cuttings to those who made application. Sugar and cotton were also developed from the same source, and at present the sugar and cotton interests of the colony are of very great importance.

On their way back to the hotel the youths again encountered the communicative policeman. Pointing in the direction of a round building similar to a windmill and supporting a signal-mast, he said,

"That is what we call the Observatory, and it is used for signalling vessels coming into the harbor. It's one of the relics of the convict time; there was once a windmill there where they ground the grain for the convicts to eat, and when the wind didn't blow the prisoners had to work a treadmill in the lower part of the building. I used to know an old fellow who had often done his 'trick at the wheel;' he said he used to have to go it four hours on a stretch, and when through with his trick he was ready to lie down and take a rest. There isn't any part of the treadmill there now, as it was quietly stolen away by the boys, who sold the old iron for a good price."