"Mais Azolin dans Rome Sceut charmer ses ennuis, Elle eût sans ce grand homme Passé de tristes nuits;"
"Dans ce peu de paroles Mr. de Coulanges [its author] dit beaucoup de choses, et fait comprendre l'intrigue du Cardinal avec la Reine."
I can find no account of this Reverend Cardinal. Who was he (if anybody), and what is his history? And who was the author of these odd memoirs of the Swedish Queen?
At page 228. of "NOTES AND QUERIES" I see mention of an English translation of _Danish_ ballads by Mr. Borrow. Is there any translation of _Norwegian_ ballads? Many of them are very beautiful and characteristic, and well worthy of an able rendering into our own language, if there were any one to undertake it. There is also much beauty in the Norwegian national music, of which a pretty but limited collection, the _Norske Field-Melodier_, arranged by Lindeman, is published at Christiania.
What is the best method of reaching Iceland? and what _really good_ books have been published on that country within the last twenty years?
Query, Has Mons. Foucault's pendulum experiment been as yet clearly enunciated? and do I understand it aright, when I conceive it is intended to show the existence of a certain uniform _rotation in azimuth of the horizon_, but different for different latitudes; which rotation, if made out to exist, is acquired solely in virtue of the uniform diurnal rotation (15° hourly) in right ascension of the equator, identical in all latitudes.
A pendulum, manifestly, can only be suspended vertically, and can only vibrate in a vertical plane; and surely can only be conceived, in the course of the experiment, to be referred to the _horizon_, that great circle of the heavenly sphere to which all vertical circles are referred.
A spectator at the north pole has the pole of the heavens coincident with his zenith; and there, all declination circles are also vertical circles; and there, the equator coincides with the horizon; whereby the whole effect of the rotation of the earth there (15° hourly) may be conceived to be given to the _horizon_: whilst, at the equator, the horizon is perpendicular to the equator, which therefore gives no such rotation at all to the horizon. Simple inspection of a celestial globe will illustrate this. Considering the matter thus, at the pole the rotation of the _horizon_ is 15° hourly, and at the equator is 0, or nothing. But the sine of the latitude (=90°) at the pole is unity, or 1; and the sine of the latitude (=0°) at the equator is 0. Therefore, at these two extremes, the expression 15° × sin. lat. actually does give the amount of _hourly apparent rotation of the horizon_; namely, 15° at one place, and 0° at the other. Now, as I understand the experiment, as given in the public prints, it is asserted that the same expression of 15° × sin. lat. will give the _rotation of the horizon_ in intermediate latitudes; of which rotation I subjoin a table calculated for the purpose.