Chemistry and Physies. (237 
0°76923, of a, 2:000 or 1:000, of a, 1°5625 and of a, 12500. 
Tables are given sh solide het the accord between the Des ae and 
the experimental atomic weights. The author concludes that 
there exists: (1) a common unit, in general greater than ue ea 
tween all the elements which beees to the same natural gro 
Zz has bd Lor the past cciniuatien furnace for 
ace oug as. 
Supports for the tube, and is lined with asbestus. This tube is 
closed at one end and has a capacity of 170-180 c.c, From i its 
Open end a rubber tube communicates with the collecting tube. 
are made with the collecting tube, the furnace is tipped back so 
as to allow the boat to slide down the vaporizing tube, and is 
rested on a block. Soon bubbles of air enter the collecting tube 
an he process terminates in a minute or less. e water is 
leveled, the volume of air read, the thermometer and baci 
133 
requiring is ae Berl. Chem. @es., xvi, ‘1051, Mey, — 
3. On a new Tellurium oxide, and on a@ new Feeuelton of "Tele 
lurium “Divas and Surmos& mee obtained a new oxide of tel- 
lurium by heatin ing in a vacuum the compound of sulphur trioxide 
and telluriam until it decomposes. It is a solid: body w which on 
heating de ecomposes into tellurium dioxide and free tellurium, the 
cathe volatilizing before the former. The sulphoxide was heated 
