ASPARAGINE AS A NUTRIENT FOR PHAENOGAMS. 
467 
PLANTS IN AMMONIUM SUCCINATE. 
Shaded branches are those newly developed. 
Length of branches after 13 days. 
Asparagine 
Ammonium succinate/ 1 ) 
cm. 
cm. 
j l0 -° 
14.5 
1 22.0 
j 10.0 
r 9.0 
( 23-5 
-< 5.0 (with a 
flower.) 
7.0 (with a 
(27.0 
17.0 
I 6.0 ( ,, „ 
» ) 
j 8.0 
( 19-0 
( 23.0 
( 100 , 
103.5 
K 7 -° ( .. 
» ) 
(25.0 
j 7-0 ( „ „ 
„ ) 
( 20.5 
167.5 
It thus appears that the total length of branches amounted to 
50 % more with asparagine than with ammonium succinate. 
(1) The difference in chemical structure is explained by the following formulæ : 
CO-NH, 
1 * 
co-o-nh. 
1 4 
1 
GH 2 
CH 2 
1 
cii*nh 2 
CH, 
j * 
1 
COOH 
co-o-nh 4 
Asparagine 
Ammonium succinate. 
