The King and the Princes, his brothers, determined to avail themselves of the advantages held out by inoculation, as a safeguard against the illness under which their grandfather had just fallen; but the utility of this new discovery not being then generally acknowledged in France, many persons were greatly alarmed at the step; those who blamed it openly threw all the responsibility of it upon the Queen, who alone, they said, could have ventured to give such rash advice, inoculation being at this time established in the Northern Courts. The operation upon the King and his brothers, performed by Doctor Jauberthou, was fortunately quite successful. When the convalescence of the Princes was perfectly established, the excursions to Marly became cheerful enough. Parties on horseback and in calashes were formed continually. The Queen was desirous to afford herself one very innocent gratification; she had never seen the day break; and having now no other consent than that of the King to seek, she intimated her wish to him. He agreed that she should go, at three o'clock in the morning, to the eminences of the gardens of Marly; and, unfortunately, little disposed to partake in her amusements, he himself went to bed. Foreseeing some inconveniences possible in this nocturnal party, the Queen determined on having a number of people with her; and even ordered her waiting women to accompany her. All precautions were ineffectual to prevent the effects of calumny, which thenceforward sought to diminish the general attachment that she had inspired. A few days afterwards, the most wicked libel that appeared during the earlier years of her reign was circulated in Paris. The blackest colours were employed to paint an enjoyment so harmless that there is scarcely a young woman living in the country who has not endeavoured to procure it for herself. The verses which appeared on this occasion were entitled "Sunrise." The Duc d'Orleans, then Duc de Chartres, was among those who accompanied the young Queen in her nocturnal ramble: he appeared very attentive to her at this epoch; but it was the only moment of his life in which there was any advance towards intimacy between the Queen and himself. The King disliked the character of the Duc de Chartres, and the Queen always excluded him from her private society. It is therefore without the slightest foundation that some writers have attributed to feelings of jealousy or wounded self-love the hatred which he displayed towards the Queen during the latter years of their existence.