1915] 



MERRILL DISTILLED WATER 



479 



TABLE VI (Series 4) 



EFFECT ON GROWTH OF PLANTS OF VARIOUS PERIODS IN TOXIC SOLUTIONS 



Culture 



no. 



1 

 2 

 3 

 4 

 5 

 6 

 7 

 8 

 9 

 10 

 11 



12 



13 

 14 

 15 

 16 

 17 

 18 

 19 

 20 



21 



22 



23 

 24 

 25 

 26 

 27 

 28 



29 

 30 

 31 



32 

 33 

 34 

 35 

 36 

 37 

 38 

 39 

 40 

 41 

 42 



First sol'n. 

 or medium 



Disc. H,0 



Dist. H 2 



N/100 MgCl, 



N/100 MgCl, 



N/100 MgCl, 



N/100 MgCl, 



N/100 MgCl, 



N/100 MgCl, 



N/100 MgCl, 



N/100 MgCl, 



N/100 MgCl, 



N/1000 MgCl, 



N/1000 MgCl, 



N/1000 MgCl, 



N/1000 MgCl, 



N/1000 MgCl, 



N/1000 MgCl, 



N/1000 MgCl, 



N/1000 MgCl, 



N/lOOOCaCl, and N/20 



MgCl, 



N/1000 CaCl, and N/20 



MgCl, 



N/1000 CaCl, and N/20 



MgCl, 



N/1000 CaCl, and N/20 



MgCl, 



N/1000 CaCl, and N/20 



MgCl, 



N/1000 CaCl, and N/20 



MgCl, 



N/1000 CaCl, and N/20 



MgCl, 



N/1000 CaCl, and N/20 



MgCl, 



N/1000 CaCl, and N/20 



MgCl, 



Full nutr. sol'n 



Full nutr. sol'n 



N/12800 H,SC»4 



N/ 12 800 

 N/ 12800 

 N/12800 

 N/ 12800 

 N/ 12800 

 N/400 KOH 

 N/400 KOH 

 N/400 KOH 

 N/400 KOH 

 N/400 KOH 

 N/400 KOH 



HjSO* 

 H,SO< 

 H.SO, 

 H 2 SO. 

 H,SO< 



Length of 

 period in 



first 

 medium 



days 



32 

 32 



32 

 32 



1 



2 



4 



8 



12 



16 



20 



32 



32 



2 



4 



8 



12 



16 



20 



32 



32 



1 

 2 

 4 

 8 



12 



16 



20 

 32 

 32 

 32 

 32 

 2 

 8 

 16 

 20 

 32 

 32 



2 



8 



16 



20 



First 



medium 



renewed 



or 



unrenewed 



Length of 

 period in 

 full nutr. 



Unrenewed 



Renewed 



Unrenewedl 



Renewed 

 Unrenewed 

 Unrenewed 

 Unrenewed 

 Unrenewed 

 Unrenewed 

 Unrenewed 

 Unrenewed 

 Unrenewed 

 Renewed 

 Unrenewed 

 Unrenewed 

 Unrenewed 

 Unrenewed 

 Unrenewed 

 Unrenewedl 



Unrenewed 



Renewed 



Unrenewed 



Unrenewed 



Unrenewed 



Unrenewed 



Unrenewed 



Unrenewed 



Unrenewed 

 Unrenewed 



Renewed 

 Unrenewed 



Renewed 

 Unrenewed 

 Unrenewed 

 Unrenewed 

 Unrenewed 

 Unrenewed 



Renewed 

 Unrenewed 

 Unrenewed 

 Unrenewed 

 Unrenewed 



days 



24 



20 



16 



12 

 32 

 32 



30 

 24 

 16 

 12 



30 

 24 

 16 

 12 



Green 



wt. of 



tops 



gms. 



1.15 



1.55 



.35 



.40 



10.15 



8.40 



5.15 



.35 



.30 



.40 



.28 



1.00 



1.00 



8.85 



9.70 



7.20 



5.15 



2.05 



1.05 



.75 



.85 



10.60 



9.35 



10.35 



8.40 



Dry 

 wt. of 

 roots 



gms 



.116 



.130 



.012 



.016 



.428 



.372 



.132 



.018 



.020 



.016 



.012 



.085 



.038 



.385 



.384 



.305 



.192 



.121 



.093 



.092 



.099 



.409 



.388 



.384 



.294 



3.00 



.144 



1.50 



.117 



.75 



.103 



8.95 



.411 



18.50 



.530 



1.55 



.130 



1.25 



.124 



7.05 



.318 



7.45 



.289 



4.40 



.236 



1.95 



.172 



1.25 



.094 



1.50 



.108 



8.60 



.444 



6.60 



.214 



2.55 



.092 



2.60 



.117 



