Are there then several sorts of oaths? Is it the same as with masses? Are there, in this business also, masses at forty sous, and masses at ten sous, which latter, as the priest said, are but "rubbish?" Does the quality of the oath vary with the price? Are there in this commodity of the oath, superfine, extra-fine, fine, and half-fine? Are some oaths better than others? Are they more durable, less adulterated with tow and cotton, better dyed? Are there new oaths, still unused, oaths worn at the knees, patched oaths and ragged oaths? Is there any choice? Let us know it. The thing is worth while. It is we who pay. Having made these observations in the interest of those who are contributors, I humbly beg pardon of M. Vidocq for having made use of his name. I admit that I had no right to do so. Besides, M. Vidocq might possibly have refused the oath! III OATHS OF SCIENTIFIC AND LITERARY MEN Here is a priceless detail: M. Bonaparte was desirous that Arago should take the oath. Understand,--astronomy must swear fealty. In a well-regulated state, like France or China, everything is bureaucracy, even science. The mandarin of the Institute depends upon the mandarin of the police. The great parallactic telescope owes homage to M. Bonaparte. An astronomer is a sort of constable of the heavens. The observatory is like any sentry-box. It is necessary to keep an eye on the good God up yonder, who seems sometimes not to submit absolutely to the Constitution of the 14th of January. The heavens are full of unpleasant allusions, and require to be kept in order. The discovery of a new spot on the sun is evidently a case for the censorship. The prediction of a high tide may be seditious. The announcement of an eclipse of the moon may be treason. We are a bit moonstruck at the Elysee. Free astronomy is almost as dangerous as a free press. Who can tell what takes place in those nocturnal _tete-a-tetes_ between Arago and Jupiter? If it were M. Leverrier, well and good!--but a member of the Provincial Government! Beware, M. de Maupas! the Bureau of Longitude must make oath not to conspire with the stars, and especially with those mad artisans of celestial _coups d'etats_ which are called comets. Then, too, as we have already said, one is a fatalist when one is a Bonaparte. Napoleon the Great had his star, Napoleon the Little ought surely to have a nebula; the astronomers are certainly something of astrologers. So take the oath, gentlemen. It goes without saying that Arago refused.