A very valuable musical manuscript, by Guillaume de Machault, who was
_valet de chambre_ to Phillippe-le-Bel, in 1307, has been discovered in
the royal library at Paris. It contains several French and Latin
anthems, ballads, &c.; and concludes with a mass, which is supposed to
have been sung at the coronation of Charles V., in 1364; and which
proves, at that time they were acquainted with the art of composition in
four parts.


NOISY FISH.


M. Cuvier lately read a short paper to the French academy on the species
of fish called _pogonias_, in which he particularly adverted to the
noise by which they make themselves heard, even under water. However
difficult the explanation of this phenomenon, there can be no doubt of
its existence; the evidence of it adduced by M. Cuvier being perfectly
satisfactory. The silurus, a large and ravenous fish, which abounds in
the Danube, gives daily proof of it.


GEOLOGY.


A treatise on the great geological question, whether the continents now
inhabited, have or have not been repeatedly submerged in the sea, has
lately been read to the Académie des Sciences, by M. Constant Prevost.
M. Prevost maintains, contrary to the generally received opinion, that
there has been but one great inundation of the earth; and that the
various remains of plants, animals, &c., which have given rise to the