When Napoleon, wishing to liberate Paris from the dangerous and insalubrious results of internal slaughter-houses, decreed the construction of the fine slaughter-houses known by everybody, he found the subject already well examined, exhibited in all its points of view, in Bailly's excellent work. "We ask," said the reporter of the Academical Commission in 1788, "we ask that the shambles be removed to a distance from the interior of Paris;" and these interior shambles have disappeared accordingly. Does it create surprise that it required more than fifteen years to obtain the grant of this most reasonable demand? I will further remark that, unfortunately, there was nothing exceptional in this; he who sows a thought in a field rank with prejudices, with private interests, and with routine, must never expect an early harvest. BIOGRAPHIES OF COOK AND OF GRESSET. The publication of the five quarto volumes of which _the History of Astronomy_ consists, together with the two powerful _reports_ that I have just described, had worn out Bailly. To relax and amuse his mind, he resumed the style of composition that had enchanted him in his youth; he wrote some biographies, amongst others, that of Captain Cook, proposed as a prize-subject by the Academy of Marseilles, and the Life of Gresset. The biography of Gresset first appeared anonymously. This circumstance gave rise to a singular scene, which the author used to relate with a smile. I will here myself repeat the principal traits of it, if it be only to deter writers, whoever they may be, from launching their works into the world without affixing their names to them. The Marchioness of Crequi was a lady in the high circles of society, to whom a copy of the eulogium of the author of _Vert-Vert_ was presented as an offering. Some days after Bailly went to pay her a visit; did he hope to hear her speak favourably of the new work? I know not. At all events, our predecessor would have been ill rewarded for his curiosity. "Do you know," said the great lady as soon as she saw him, "a Eulogy of Gresset recently published? The author has sent me a copy of it, without naming himself. He will probably come to see me; he may, perhaps, have come already. What could I say to him? I do not think any one ever wrote worse. He mistakes obscurity for profundity; it is the darkness before the creation." Notwithstanding all Bailly's efforts to change the subject of the conversation, perhaps on account of those very efforts, the Marchioness rose, goes in search of the pamphlet, puts it into the author's hands, and begs of him to read aloud, if it be but the first page--quite enough, she said, to enable one to judge of the rest.