Let us indeed remember how much time has been required and what effort has been expended to complete the long and patient inquiries which he had hitherto accomplished; obliged, as he was, to allow himself to be interrupted at any moment, and to postpone his observations often at the most interesting moment, in order to undertake some enervating labour, or the disagreeable and mechanical duties of his profession. Remember that his first labours already dated from twenty-five years earlier, and at the moment when we observe him in his solitude at Sérignan he had only just painfully gathered together the material for his first book. What a contrast to the thirty fruitful years that were to follow! Now nearly ten volumes, no less overflowing with the richest material, were to succeed one another at almost regular intervals--about one in every three years. To be sure, he would have gathered his harvest in no matter what corner of the world, provided he had found within his reach, in whatever sphere of life he had been placed, any subject of inquiry whatever; such was Rousseau, botanizing over the bunch of chickweed provided for his canary; such was Bernardin Saint-Pierre, discovering a world in a strawberry-plant which had sprouted by chance at the corner of his window. (6/2.) But the field in which he had hitherto been able to glean was indeed barren. That he was able, later on, to narrate the wonderful history of the Pelopaeus, whose habits he had observed at Avignon, was due to the fact that this curious insect had come to lodge with him, having chosen Fabre's chamber for its dwelling. None the less he threw himself eagerly upon all such scraps of information as happened to come under his notice; witness the observations which he embodied in a memoir touching the phosphorescence of certain earth-worms which, abounding in a little courtyard near his dwelling, were so rare elsewhere that he was never again able to find them. (6/3.) It was therefore fortunate, if not for himself, at least for his genius, that he did not become, as he had wished, a professor in a faculty; there, to be sure, he would have found a theatre worthy of his efforts, in which he might even have demonstrated, in all its magnificence, his incomparable gift of teaching; but it is probable too that he would have been stranded in shoal waters; that in the official atmosphere of a city his still more marvellous gifts of observation would scarcely have found employment.