"To the left bank!" Dick Sand ordered, as being more prudent. "The stream is again navigable."

"To the left bank!" replied Hercules, giving the oar a vigorous stroke.

Dick Sand stood beside him and looked at the surface of the water, which the moon lit up. He saw nothing suspicious. Not a boat had started in pursuit. Perhaps these savages had none; and at daybreak not a native appeared, either on the bank or on the water. After that, increasing their precautions, the boat kept close to the left bank.

During the four following days, from the 11th to the 14th of July, Mrs. Weldon and her companions remarked that this portion of the territory had decidedly changed. It was no longer a deserted country; it was also a desert, and they might have compared it to that Kalahari explored by Livingstone on his first voyage.

The arid soil recalled nothing of the fertile fields of the upper country.

And always this interminable stream, to which might be given the name of river, as it seemed that it could only end at the Atlantic Ocean.

The question of food, in this desert country, became a problem. Nothing remained of their former stock. Fishing gave little; hunting was no longer of any use. Elks, antelopes, pokous, and other animals, could find nothing to live on in this desert, and with them had also disappeared the carnivorous animals.

The nights no longer echoed the accustomed roarings. Nothing broke the silence but the concert of frogs, which Cameron compares with the noise of calkers calking a ship; with riveters who rivet, and the drillers who drill, in a shipbuilder's yard.

The country on the two banks was flat and destitute of trees as far as the most distant hills that bounded it on the east and west. The spurges grew alone and in profusion--not the euphosbium which produces cassava or tapioca flour, but those from which they draw an oil which does not serve as food.

Meantime it is necessary to provide some nourishment.

Dick Sand knew not what to do, and Hercules reminded him that the natives often eat the young shoots of the ferns and the pith which the papyrus leaf contains. He himself, while following the caravan of Ibn Ilamis across the desert, had been more than once reduced to this expedient to satisfy his hunger. Happily, the ferns and the papyrus grew in profusion along the banks, and the marrow or pith, which has a sweet flavor, was appreciated by all, particularly by little Jack.

This was not a very cheering prospect; the food was not strengthening, but the next day, thanks to Cousin Benedict, they were better served. Since the discovery of the "Hexapodus Benedictus," which was to immortalize his name, Cousin Benedict had recovered his usual manners. The insect was put in a safe place, that is to say, stuck in the crown of his hat, and the savant had recommenced his search whenever they were on shore. During that day, while hunting in the high grass, he started a bird whose warbling attracted him.

Dick Sand was going to shoot it, when Cousin Benedict cried out:

"Don't fire, Dick! Don't fire! A bird among five persons would not be enough."

"It will be enough for Jack," replied Dick Sand, taking aim at the bird, which was in no hurry to fly away.

"No, no!" said Cousin Benedict, "do not fire! It is an indicator, and it will bring us honey in abundance."

Dick Sand lowered his gun, realizing that a few pounds of honey were worth more than one bird; and Cousin Benedict and he followed the bird, which rose and flew away, inviting them to go with it.

They had not far to go, and a few minutes after, some old trunks, hidden in between the spurges, appeared in the midst of an intense buzzing of bees.

Cousin Benedict would have preferred not to have robbed these industrious hymenopters of the "fruit of their labors," as he expressed it. But Dick Sand did not understand it in that way. He smoked out the bees with some dry herbs and obtained a considerable quantity of honey. Then leaving to the indicator the cakes of wax, which made its share of the profit, Cousin Benedict and he returned to the boat.