118 Scientific Intelligence. 
appear to belong to the right-rhombie system, and which have the 
formula, Sb MeaO, SOs-5 aq. ; it is readily soluble both in water and 
alcohol. The author did not succeed in forming an alum with the sul- 
phate of alumina. The bisulphate of stibmethylium forms beautiful hard 
colorless crystals which have the formula Sb MesO.SOs-+HO. SOs. 
The author describes further a nitrate, ae bicarbonate, oxa 
and acid tartrate, but gives no measurements by which to jastify his 
Statement that the compounds of stibmotty ina appear to be isomorph- 
ous with those of potassium and ammonium. Saletan Sur Sir praktische 
Chemie, \wii, 
Note on the Kakodyl of Valerianic Acid.—As the compounds of 
metals with organic radicals are becoming every day of more imp 
tance to the theoretic chemist, I am induced to mention in this p 
me he made in November, 1849, on the 
formation of new organic compounds containing arsenic. When vai 
rianate of potash is cise’ with an equal w eight of arsenous acid, @ 
heavy oily liquid passes r into the receiver, slightly pelle 
color, -~ sroneays. a penetrating and ene eve odor ¢ a 
reome time’to-the air in an se a closed ee vessel 
it became “eompletely converted into a mass of ey es ana hard 
four-sided prisms, which were nearly colorless, and with 
bibulous paper, free from smell. They had an acid. sinusien and may 
have been the valerianie compound corresponding to kakodylic acid. 
These crystals were readily soluble in water. In an attempt to | 
them with oxyd of silver for the purpose of determining their constitl 
tion they were completely decomposed. The oily liquid obtained by 
the distillation above mentioned was soluble in water and appeared t0 
reduce oxyd of mercury to the metallic state. It will be seen that the 
reactions of the substance in question in all respects resemble those © 
the butyric kakodyl obtained by — and exhibit much ——. 
those of the acetic kakodyl of Bunsen. The offensiveness of | 
compounds to non-chemical noses iehmagiaigas persons occ in the 
same building with the writer, have hitherto prevented a further inves 
re at of this subject, which it is to be hoped will engage tut 
‘chemists more advantageously situated.—w. @ 
3. Constitution of Spermacett.—Heintz has published in detail the 
results of his investigation of this subject—results which differ in many 
particulars from those obtained by other chemists. i was 
7 gene by boiling with an alcoholic solution of caustic potash. The 
tion was precipitated by chlorid of barium, and the baryta salts thus 
dunes freed esas ethal by washing with alcohol which at the samé 
time dissolved a portion of a baryta salt soluble in alcohol but 1 
ble in ether. The etherial solution also yielded a third baryta salt. 
Heintz studied separately an alcoholic solution from wh ich the last 
three baryta salts. The ethal was found - ‘possess: paneraseeran 
assigned to it by Dumas, viz.,, CoaHlss0--HO.- ‘The alcoholic solutioa 
