484 Scientific Intelligence. 
the action of ethyl iodide on silver sulphite. The corresponding 
selenium compounds, treated in this way, afforded completely iden- 
tical ethers both having the constitution SeO Me) and both 
affording selenous acid on decomposition with water. Selenous 
acid then is a true dihydroxy] acid SeO i ar and different from 
efflorescences formed on the side of the vessel. After tie gr 
w 
on LiepMann, simultaneously but independently, has also iso- 
sugar. Two kilograms of the sugar 
obtained to examine. The residue was dissolved in as little ether 
as possible, and agitated with concentrated hydro-sodium sulphite 
solu ion. olution thus obtained was treated with dilute sul- 
evaporation, but soon solidified. After purification, the sub- 
stance was obtained as small pure white star shaped groups of 
pos odor and taste of vanilla. It was easily 
xiii, 335, 662, March, April, 1880. iG EB 
- On onversion of Hyoscyamine into Atropine.—lt 18, : 
well-known fact that hyoscyamine splits up into hyoscinic ac} 
