386 Foreign Literature and Science. | 
a half from Aranjuez, in a place known under the name of 
Salines d’ Espartines, and which was ascertained to eonsist 
of sulphate of soda, mixed with a very small portion of 
sub. carb. of soda. M. Casaceca, professor at Madrid, has 
given it the name of menardite, in honour of distinguished 
French chemist 
This salt is precipitated from its watery selution, ina crys- 
taline form, without retaining the least particle of the fluid 
which dissolvedit. This anhydrouscondition of a sulphate of 
soda is very remarkable. It may be owing to the temperature 
which the waters acquire that hold it in solution; or the na- 
ture of the soil on which the deposit is made, and on the salts 
which may remain in the mother waters 
Oue hundred parts of this new substance contain 
Sulphate of seda e be 
org karan of soda 
It differs from all others at present known, iv  siddettarly 
from the glauberite iad at Villa-Rubia, in La Mancha.--Id. 
= 
9. Surgery=+M. Dupvuytren, presented to the Academy 
of Sciences on the 7th of August, 1826, three persons cured 
ef cancers of the lower jaw by the amputation of a greater 
or less portion of the jaw. ‘This celebrated surgeon gave 
. Some interesting details of the history of this operation. 
During a long period, the only carcinomatus affections of the 
jaw, within the reach of art, were those which, limited to the al- 
veolary border, penetrate the bone only to an i rable 
epth, and whichrare designated by the term epulis. They w were 
attacked by the actual cautery, and often cured; a method 
practised for many centuries. But as to real caneers,—osteo- 
sarcoma,—which affect the whole thickness of the bone, 
throughout an extent more or less considerable, they have al- 
ways resisted this oo Seroeses ; and, on the ot , 
no one ae red to aa the pnligeree of the part, 
M.D tren, seers ing that many of the subjects at 
the | otel 3 Tay valides had lost different portions of the 
jaw by musket balls, conceived the hope of being able toexe- 
ae successfully ’ by well devised instruments, what had been 
by mere physieal force, without destroying life. The 
first part on which the ration was tried, was a mal 
val > Ss 35 years of age, who had a can- 
T Ras of the jaw. The portrait of this 
Academy, gave the most fright- 
