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60 



B 



accelerates Ihe condensation of amides which lakes place under normal circum- 

 stances. 



Also in polato-tubers an increase of the proteids is affected by injury; this 

 increase, however, is retarded by the doses of ether used in these experiments. 



With regard to buds of Acer Pseudoplatanus no effect of injury upon the 

 nitrogenous compoundsjhas been demonstrated. An increase of the amides has 



been affected by exposing the buds to dark- 

 ness. Concerning the effect of ether small 

 doses have produced an increase of the 

 amides, while averagely large doses have 

 affected a decrease of these compounds. 

 Yet larger doses have deaded the buds and 

 thus caused an increase of the amides. 



In consequence of the experiences 

 gained by the experiments quoted in this 

 paper togetlier with those gained by several 

 of the above mentioned authors we may 

 graphically illustrate the effect of the ether- 

 narcosis on the processes that take place 

 in the plants, of which a few instances are 

 shown in the following: 



Thus the effect of ether-narcotization 

 on the nitrogenous compounds of the ripen- 

 ing seeds may be illustrated by the curve 

 A, the points of the X-axes indicating the 

 amount of the ether-doses, the points of the 

 Y-axis indicating the acceleration respective 

 retardation of the proteid-synthesis. 



And in the same manner we may 

 illustrate the effect of ether on the nitrogen- 

 ous compounds of seedlings (cfr. curve B), the points of the X-axis indicating as 

 above the amount of the separate doses, while the points of the Y-axis indicate 

 the acceleration respective retardation of the formation of amides; and a curve of 

 similar shape may be used as an illustration of the effect of ether on the forma- 

 tion of sugars. 



Likewise the effect of etherization upon the nitrogenous compounds of buds 

 of Acer may be demonstrated by a curve C, the points of the Y-axis indicating the 

 increase respective decrease of the amides, the points of the X-axis indicating as 

 above the strength of the ether-doses. 



As a résumé of the results (which is illustrated by the curves with regard to 



some of the processes) 

 of ether-narcotization : 



we must distinguish between several phases of the effect 



