﻿268 



56 



that the dose used in the concerned time of exposure has not been sufficiently 

 large to be traced in the time ensuing the exposure, during which a condensation 

 parallel with the normal one has taken place. On the contrary the dose used in 

 B^ was sufficiently strong lo determine the character of the processes the first two 

 days after the exposure. If the duration of the experimental time after the ex- 

 posure is extended, as in C, small doses will in the total produce an acceleration 

 of the above mentioned process, even if they have retarded in the first stage the 

 condensation characteristic of the ripening process (cfr. C .'5). On the contrary the 

 effect of doses somewhat larger (0'6c. c. per liter) may be traced for 4 days after 

 the exposure. The dose used in 5 proved deadly. 



These results agree with those found by Johannsen [Johannsen 1897 p. 58]. 

 The deviation found in the case of the smallest dose which produced a retardation 

 of the condensation (A,), while Johannsen found an acceleration of this process 

 by the same dose, must be ascribed to the circumstance thai the absolute amounts 

 of my doses were much larger, as I have used jars of 14 liters capacity, while 

 Johannsen has used jars of 2 liters capacity. 



A single experiment on ripening seeds of lupines was likewise made. 5 "com- 

 mon-legume" portions were used. The seeds were green, a few showed slight 

 indications of markings on the seed-coats. The seeds contained 2360 " o drj'- 

 material, of which 021 " luV. Temp. 16-19°. 



in 20 c. c. of .extract 



1. Directly crushed 



2. 2 day.s without ether ... 



3. 2 with 0-1 c. c. ether 



4. 2 - 0-5 - - 



5. 2 



09 



S| 



o. s 



2:S 



100-00 100-00 

 70-41 I 93-23 

 74-89 1 51-42 



137-671 9010 



o/o 



100-00 

 76-89 

 68-22 



124-24 



/ fresh: the markini 

 I not so distinct ns i 

 I ' 2 and 3. 



159-65 I 12«-,S2 I 1.50-89 i discoloured : the 

 ' m.irldnss not dislhu 



The experiment demonstrates that small doses accelerate the condensation 

 which normally takes place during the ripening-process, while larger doses retard 

 this process (4). The last portion, 5, died. In this experiment I carried out a 

 separation of the amides in monamino-acids and diamino-acids (Lysin, Histidin 

 Arginin). The mutual relation of these gi'oups during the ripening process is but 

 slightly known. The experiments seem to indicate that these compounds decrease 

 during the ripening-process of the seeds, a fact which also Wassilieff has stated 

 [Was.silieff 19Ü8, p. 467], It is however difficult to examine the relation of the 



