186 Foreign Literaiure and Science. 
power of six hundred horses. Sees that on an average, 
they are equal to twenty five horses each, the total strength 
of these engines would amount to that of three hundred: sev- 
enty five thousand horses. Now, agreeably to the estimate of 
Mr. Watt, a horse is equal to five anda halfmen. England, 
therefore, possesses in these engines, a force of about two 
means of steam ‘engines, seven hundred: and ny thousand 
acres more at their ve Se than if the same labor were exe- 
euted by horses.—ZJbid. 
36. Crystal Bed.—The public have been hastening to the 
palace de Tameda, to see a bed of massive crystal, destined 
to be sent as a present to the shah of Persia by the emperor 
of Russia. This magnificent bed, the only one of the kind 
perhaps in the world, is resplendent with silver, ornamented 
with columns of erystal, and ascended by steps of blue glass; 
It is constructed in such a manner that there can be made to 
issue from it, on each side, jets of odoriferous water, whose 
murmuring sounds may excite an agreeable slumber, It res 
flects by the light of flambeaux a dazzling splender resem- 
bling myriads of diamonds, There is no doubt: that this 
piece of furniture will astonish even eastern luxury and mag- 
nificence. It was madé in the Imperial manufactory of St. 
Reta ranighie Anum patriotiques, Oct. 1825,—Ibid. 
7. Compressibility we water, by Prof: Oerstéds. 
nike a far as the strength of my apparatus allowed me to 
urge the compression of water, (viz. toseventy atmospheres,) 
Thave found the compressibility. proportionate to the com- 
pressing force. The compression: produced ‘by a single at- 
on already discovered by Canton, is about forty-five: - 
milhonths of the whole volume. Mr, Perkins has: obtained: 
by a pressure of:one hundred atmospheres, a compression of 
one hundredth of the entire volume, which is much mere 
than can be inferred from my experiments. Calculating 
from the results I have obtained with pressures below seven- 
ty atmospheres, I obtain for one hundred atmospheres only 
aon. osu that my results differed so widely from the: 
18) anician’s who preceded me, I have: re- 
: : experiments ith: the greatest care, and they-are- 
50 > sit ‘hat I can entertain no doubt of their correctness. 
