"Oh, do let us!" cried Maria, who always wanted to do every thing the boys did, but the Senhora shook her head. At last it was arranged that Uncle Hilario should walk down with the boys, while the girls went discreetly home in the train with the Senhora. The boys were jubilant.

"See the ships, uncle," cried Affonzo as they looked across the bay to the broad Atlantic. "They are just over the horizon line. What's that puff of smoke for?" as a puff came from a ship nearing the harbour.

"Watch the fort," said the Senhor, and there another puff was seen. "Eyes are better than ears at this range. That was a salute from the ship answered by the guns from the fort. We can see the smoke, but cannot hear the report.

"Here is the source of Carioca. The name is from an Indian word, Kaa-ry-og, and means 'the house of the streams from the woods.' See how the stream is shaded by these giant trees? That is what makes it so cold. The water flows amidst all manner of sweet-smelling aromatic plants, and goes into an aqueduct full of pleasant scents. It is said to have some medicinal qualities."

"It is nice enough here to cure any sickness," said Martim, and they went slowly on down the mountain, following the same bridle-path which their uncle had followed so many years before, reaching home without any accident, tired but delighted with the tramp.


CHAPTER IX
THE COFFEE PLANTATION

The Senhor Lopez' business was to export coffee, as that of his brother-in-law was to export rubber. He had a large coffee fazenda in Sao Paulo, the province of Brazil most devoted to coffee raising, and he often went there to inspect the plantation. He suggested therefore that his wife, his sister, and the children should spend a week with him at the fazenda, and the two mothers decided to do so, knowing how much pleasure it would give the little folk. It was an all day's ride to Sao Paulo, but there was so much to see as the train moved over the plains, across rivers and through forests and hills, that the children did not find it tiresome, and were very bright and gay as, just at sunset, they neared Sao Paulo.

"This is one of the finest cities of Brazil," said their uncle. "Ten years ago it was not a large place but now it has three hundred thousand people, many beautiful buildings, electric lights and trolley cars. It has also some very good schools and colleges, and students come here from all parts of the country. Perhaps Affonzo will go to college here some day."