Zincography. — 263 
cords are improved in quality, they tend more and more to raise the 
tone, especially as the instrument admits of this increase of tension 
without changing its model. 
ere is also a permanent cause for the rise of the diapason in the 
method used for tuning. In fact, itis done by the file; and filing a diapa- 
son heats it: at the moment it is in tune with the heap Ae is thus 
hen thi 
mean scale of the piano; the /a corresponding, will then, in the system 
of equal temperament, correspond to 890 vibrations, which is very near 
the actual da of the Conservatoire, or the mean Ja adopted by the 
_ manufacturer. ‘This method will have the advantage of connecting in- 
directly the scale of sound with the decimal system. 
parts of the surface which have been covered with the lithograpie & 
ss. 
On Horseflesh for food.—M. I. Gzorrroy St. Hrzarre, the President 
of the Zoological Society for Acclimation and Professor at the Mus. 
d’Hist. Naturelle, &c., ina course of lectures on animals useful to man, 
8 just devoted two lectures demonstrating the advantages « horse- 
for food. After speaking of the predilection of the ancient Ger- * 
e 
mans for horseflesh, he has inquired into the av rsion now so general. 
Continued among these people until driven out asa part of paganism 
by the spread of Christianity. Yet in spite of the efforts of Pope Greg. 
ory Ill. and his successors, the use of horseflesh continued for a long 
time in Scandinavia. The race of white horses is still found pure in 
the stables of Fredericksberg belonging to the King of Denmark. 
