466 



NAK AMUR A ; ON THE RELATIVE VALUE OF 



Asparagine Ammonium succinate 

 cm. cm. 



Average height, March 12th 20.27 19.92 



,, ,, ,, 21th 22.60 20.33 



Difference 2.33 0.41 



Percentage of increase 11 .49 2.06 



In the next experiment, the solutions contained only one- 

 fifth as much asparagine and ammonium succinate as before, all 

 other conditions being the same. The result was after 14 days 



as follows : 



Asparagine Ammonium succinate 

 cm. cm. 

 Average height, March 23th 21.31 21.06 



April 6th 28.13 24.08 



Difference 6.82 3. 02 



Percentage of increase 32.00 14-34 



In the third experiment, onion plants were treated with the 

 same solutions as in the first experiment, five plants being placed 

 in each of the solutions, after all the side leaves had been cut off. 

 Although in this case the central leaves in both solutions reached 

 the same height, there was, nevertheless, a great difference in 

 the number and length of the newly developed branches. 0 ' 



PLANTS IN ASPARAGINE. 



(i) The leaves kept in ammonium succinate solution commenced to show yellow 

 colouration on the seventh day. 



