﻿244 



32 



Cotyledons. 



No side roots before the exposure; after the exposure side-roots were formed in all the portions 

 and all the seedlings were fresh. 



All these experiments confirm the results of A: that there is a relation between 

 the formation of amides in the cotj'ledons and the translocation of nitrogenous com- 

 pounds to the shoots (cfr. the figures of i as regards the cotyledons), and that 

 there is an intimate relation between the synthesis of proteids in the shoots and 

 the amounts of nitrogenous substances conveyed to the shoots (cfr. the numbers 

 of i as regards the shoots). 



F. Seedlings 5 days old were used. Each portion contained 45 seedlings. Weight 

 of the portions before the exposure: 



1. 2. 3. 4. ;'). 



14-52 gr. 14-17 gr. 1422 gr. 14-30 gr. 14- 15 gr. 



Temp. 10—16°. 



Shoots. 







fe ë™ 



= = », 31° 



fy. o ïï o (r.ïï — 



Ï g- ■ "■" - 





1. Directly crushed 



3. 3 days without ether 



3. 3 - — - 



4. 18 hours with 01 c.c. ether. 2 days 

 without ether 



gr. 1 nigr. , mgr. 



2-90 i 12-21 ' 13-28 



5-82 ! 20-33 20-57 



5-68 i 19-75 I 19-50 



mgr. 



25-49 



100-00 



5. 18 hours with ()-2 c.c. ether. 2 days 

 without ether 



3-0 

 6-0 



5-70 18-71 19-84 

 4-92 16-46 17-77 



141-87 

 133-81 

 Side-roots were formed during the time of exposure; all the seedlings were fresh. 



40-90 : 166-51 

 38-25 ; 161-75 



"A, 

 100-00 

 154-90 

 146-84 



38-55 I 153-24 

 34-23 1 134-81 



o/o ' "A. 

 100-00 I 52-10 

 160-46 I 50-29 

 150-06 \ 48-37 



151-24 I 51-47 



134-29 ' 51-91 



