﻿27 239 



I. Each portion contained 45 seedlings. Temp. 13—18°. 



, ,,. „ , , /cotyledons. 17-24 gr. plants 228-70 mgr. IV 6o'Sl »lo \ ,fy, „, 



1. D.rectly crushed , ^^^j^^^ 3^.33 _ 129 69^ - 36-18 «l„ / ^^^ '' 



„ „ . ... , „ (cotyledons 17-]S - - 184-77 -^ - 51-97 »lo ) ,„„0, 



2. -2 days w.thout ether , ^l^j^^^ 3^.^^ _ 168-23-- 48-03 »lo / ^°° '" 



3. 2 days ^vith 0-28 c. c. ether f cotyledons . 17-52 - — 226-00 — - 64-13 »/o \ -^qq „,^^ 

 per Iiter(=14-14c.c.ether) »shoots 30-07 - - 127-00 — - 35-87 »/o / 



II. Each portion contained 24 seedlings. Temp. 9— 11°. 



Weigh! ol plaiil-objecls 

 , . , , , ( cotyledons 8-15 gr. 119-90 mgr. N 62-31 "lo \ -,^^„1 



1. Directly crushed \ io,-n 70 -r Q7.i'Qoi i'-^'" 



y shoots 13-bO - 72-.ob — - d7-b9 "lo > 



, „ ^ ... . ., /cotyledons 8-04 - 93-68 — - 51-70 »lo \ ^f.^ / 



2. 2 days xythout ether . . . ^ J^^^ ^^^^ g^.g3 _ _ ^^.3^ „,^ ^ lOOolo 



;i. 2 days with 028 c. c. ether / cotyledons 8-35 - 101-30 — - 52-95 »lo \ ^qq o|j, 



per liter {— 8-26 c. c. ether) I shoots 18-62 - 90-00 — - 47-05 »lo / 



III. Portions à 32 seedlings. Temp. 10—14°. 



Weight of plant-objeols 



, „. ., , . (cotyledons 12-34 gr. 179-93 mgr. IV 66-76 "lo » ,„„„, 



1. D.rectly crushed ^ ^J^^^ ^^.^^ gg..g _ _ gg.^^ „,^ ; 100 /., 



., ^ , .... ., /cotyledons 12-12 - 144-32 - - 53-73 »/o » ,.)f)o, 



2. 2 days .-ithout ether [ J^^^ 24-32 - 124-29 - - 46-27 "lo / '^ '" 



3. 2 days with 0-28 c. c. ether / cotyledons 11-57 - 146-42 — - 54-29 "lo » -^j^q „,^ 



perliter(=8-26c.c. ether) »shoots 24-41 - 123-25 - - 45-71 »lo / 



The experiments show that the translocation of nitrogenous substances, which 

 lakes place normally in seedlings, was retarded by etherization in I, while this 

 process has not been affected in II and III. The fact of this deviation must be 

 ascribed to the circumstance that the amount of the nutrient saline solution used 

 in I was 1-5 liter per portion, while the amount of the solution used in II and III 

 was only 05 liter per portion; consequently the total amount of ether was larger 

 in I than in II and III. Besides the temperature was somewhat higher in the first 

 experiment than in the two latter ones, which circumstance — as previously men- 

 tioned — accelerates the effect of the ether. 



As small doses of ether are able to accelerate the normal processes such as 

 growth, movements and several metabolic processes, as mentioned above, an ac- 

 celeration of the mobilization of the substances might possibly be affected, as 

 Zalesky presumes. In this case it might, however, be taken for granted that an 

 acceleration of the katabolism of the reserve-materials in the cotyledons might 

 simultaneously take place. To investigate whether an acceleration of the trans- 

 location might possibly take place I have made some experiments for which, how- 

 ever, seedlings of Pisum were used, these representing a material much more 

 uniform than Lupinus angustifolius of which it is very difficult to obtain a uniform 

 crop on account of their small power of germination and a considerable variability 

 of their rapidity of growth. 



