The formation of proteids in plant-cells. 
47 
lively motion. At this time fumaric acid in a control solu¬ 
tion had been entirely decomposed and the bacterial vegetation 
formed slimy flocculi at the bottom of the flask. 1 ) 
Of interest is the contrast between the moderate nutritive 
qualities of aceton and the exceedingly poor results of diaceto- 
namin, further that between glycol and the non-nutritive 
pinacon, i.e. tetramethylglycol, while trimethylcarbinol forms 
again a moderately good source: 
H 2 C—OH (CH 3 ) 2 C—OH 
H 2 C—OH (CH 3 ) 2 C — OH 
^ _ __ ^ ^ _ __ ^ 
Glycol. Pinacon. 
While furthermore betaïn forms a better source than gly- 
cocoll, we find that trimethylamin is not so favorable as methyl- 
amin. If we compare the latter solutions after a strong 
bacterial turbidity had set in, we have to dilute it . at least 
5 times with water until the degree of turbidity has reached 
the weak turbidity of the trimethylamin solution. 2 - 1 
ch k , 
ch 3 -^C—OH. 
ch 3 ' 
Trimethylcarbinol. 
Methylamin. Trimethylamin. 
Betaïn. 
H 3 N 
I 
ch 2 . 
I 
O—CO 
__ 
Glvcocoll. 3 4 ) 
j 
To the nitrogenous compounds which neither serve as a 
source of carbon nor as a source of nitrogen, belongs dimethyl- 
oxypyrimidin 4) in 0,2% solution, while coffein serves not only as 
a source of carbon, but also as a source of nitrogen. 
.^N-C—CH 3 CH3.N-CH 
T C H I 11 
N=C^lX« C0 C “ N ' 
OH ! I 
CH 3 .N—C: 
CII3.C 
Dimethyloxypyrimidin. 
: N 
Coffein. 
-CH 3 
CO. 
If we compare the monovalent alcohols, from methyl to 
1) In this case as in similar ones the principal bacillus developed resembled 
Bacillus liquefacicns fluorescens. 
2) Both these bases were applied in 0,50/0 solutions neutralised with phosphoric 
acid, and were infected with Bacillus methylicus, O. Loezv, Centralbl. f. Bacteriol. 
12, 465. 
3) As regards this formulation of glycocoll, compare jfoji Sakurai, Journal of 
the College of Science, Vol. 7. 
4) The oxypyrimidins first prepared by A. Pinner have a phenol-like character. 
Deutsch. Chem. Ges. 18. I owe Prof. Pinner many thanks for providing me with a 
number of pyrimidins. 
