1918.] The Fifth Indian Science Congress. CXXxili 
__ The third method examined is that of passing alcohol vapour mixed 
with excéss of air over a suitable catalyst at a temperature between 200° 
and 250°. There is et 
i 
this way, and the experiments are bei ntinued wit e object of 
ca this into acid. Details of conaitinns and yields are given in 
the pape 
The evolution of elements.—By S. 8. Samnt. 
: ‘ me n er Thi chang 
given rise to un table heavy subst ances, viz. the vadioassite substances. 
Their disin te sated does not give rise to allied products or variations, 
n i 
has given 
apg in which every m mother element dior from its allied ete by 
e (n greater than 4). Their presence or absence in the sun and oth 
Two-cylinder models of the periodic system.—By A. N. 
LDRUM. 
a 
The periodic system of the elements can be i - ibed on the surfaces 
* two eylindars which stand side by side and t one another. This 
as first done by Crookes. The number of ecdetyerinins of the periodic 
s legi on and it is —— to construct a two-cylinder model 
si tis possible to make ane diagram which represents the 
development” of the ‘ytsdrloal sorfdees and in this way any two- 
be stu wi 
ys sal into two sets w ich are not the same as ‘ d 
Pies series of Mendeleeff, and (2) to families of the eletiaiite which 
Precisely the same as those of Lothar Meyer. 
The influence of ammonium chloride, sodium chloride, and 
ct chloride on the solubility ‘of aniline in wa 
a Waster: R. RB. Kuanna, D. R. Kapur ued 
ra D. Son 
ee see of the solubility oh aniline in water containing 
"ing Concentrations of the above salts are descri 
by pai © results so stg =o seh been co eds with those obtained 
ae ilip fey sity with diffe solvents. pacer Cos" 
ound that the e etna ront calacave lowering of solven 
of the Water decreases ene rai idly w with r rising facie of added salt 
~ age a er cases. 
Tt is suggested that this behaviour is to be explained ad 
ery of some form of combination between the aniline line and ad 
srt hi 
omes pees ge ar in strong solutions. 
Sean It is pointed out that a similar assumption made by Philip me 
®y to account ri divergent values obtained for he equivalen 
