ORGANIC CONSTITUENTS. 



21 



tlie nitrate and phosphate solutions were much hardier and had a 

 healthier appearance than those grown in the potash solution. 



Table 6. — Dry weight and ether extract of seeds, axes, and total plants when grown for 15 

 days in different nutrient solutions. 



STARTED MARCH 29. 



Parts of plant and age. 



Control solution. 



Weight 

 of 100. 



Grams. 



Ether extract. 



Per 

 cent. 



Potash solution. 



Weight 

 of 100. 



Ether extract. 



Grams. 



Per 

 cent. 



Phosphate solution. 



Weight 

 of 100. 



Ether extract. 



Grams. 



Per 



cent. 



Original seed 



Seeds: 



5 days... 



7 days . . . 



9 days . . . 



12 days . . 



15 days . . 

 Axes: 



5 days... 



7 days . . . 



9 days . . . 



12 days.. 



15 days.. 

 Total plants: 



5 days . . . 



7 days... 



9 days . . . 



12 days.. 



15 days.. 



Grams. 

 3.50 



1.89 

 1.38 

 .93 

 .62 

 .36 



1.13 

 1.34 

 1.54 

 1.56 

 1.48 



3.02 

 2.72 

 2.47 

 2.18 

 1.84 



0. 0686 



.0470 

 .0450 

 .0450 

 .0445 

 .0412 



.0235 

 .0353 

 .0480 

 .0500 

 .0478 



.0705 

 .0803 

 .0930 

 .0945 



2.0 



2.5 

 3.3 



4.8 

 7.2 

 11.4 



2.1 

 2.6 

 3.1 

 3.2 

 3.2 



2.3 

 3.0 

 3.8 

 4.3 

 4.8 



Grams. 

 3.50 



2.00 



1.48 



1.04 



.70 



.38 



1.10 

 1.42 

 1.51 

 1.73 



1.77 



3.10 

 2.90 

 2.55 

 2.43 

 2.15 



0.0686 



.0483 

 .0461 

 ,0456 

 .0466 

 .0425 



.0210 

 .0360 

 .0410 

 .0500 

 .0542 



.0693 

 .0821 



0967 



2.0 



2.5 

 3.1 

 4.4 

 6.7 

 11.1 



1.9 

 2.5 

 2.7 

 2.9 

 3.1 



2.2 

 2.8 

 3.4 

 4.0 

 4.5 



Grams. 

 3.50 



1.74 



1.29 



.80 



.49 



.36 



1.20 

 1.55 

 1.95 

 1.76 

 1.87 



2.94 

 2.84 

 2.75 

 2.25 

 2.23 



0. 0686 



.0435 

 .0458 

 .0450 

 .0510 

 .0447 



.0237 

 .0453 

 .0600 

 .0581 

 .0625 



.0672 

 .0911 

 .1050 

 .1091 

 .1072 



2.0 



2.5 

 3.6 

 5.6 

 10.5 

 12.4 



2.0 

 2.9 

 3.1 

 3.3 

 3.6 



2.3 

 3.2 

 3.8 

 4.8 

 4.8 



STARTED APRIL 11. 



Parts of plant and 



Control solution. 



Weight of 

 100. 



Ether extract. 



Grams. 



Per 



cent. 



Nitrate solution. 



V/eight of 

 100. 



Ether extract. 



Grams. 



Per 



cent. 



Complete solution. 



Weight of 

 100. 



Ether extract. 



Grams. 



Per 

 cent. 



Original seed 



Seeds: 



5 days.. 



7 days . . 



9 days.. 

 12 days.. 

 15 days.. 

 Axes: 



5 days.. 



7 days.. 



9 days.. 



12 days.. 



15 days.. 



Total plants: 



5 days . . 



7 days.. 



9 days.. 

 12 days.. 

 15 days.. 



Grams. 

 3.50 



2.12 



1.57 



1.21 



.71 



.60 



1.01 

 1.23 

 1.48 

 1.33 

 1.48 



3.13 

 2.80 

 2.69 

 2.04 

 2.08 



0.0686 



.0380 

 .0405 

 .0451 

 .0420 

 .0470 



.0233 

 .^0330 

 .0443 

 .0397 

 .0450 



.0613 

 .0735 

 .0894 

 .0817 

 .0920 



2.0 



1.8 

 2.6 

 3.7 

 5.9 

 7.9 



2.3 



2.7 

 3.0 

 3.0 

 3.0 



2.0 

 2.6 

 3.3 

 4.0 

 4.4 



Grams. 

 3.50 



2.07 



1.41 



.93 



.56 



.46 



.96 

 1.23 

 1.55 

 1.67 

 1.71 



3.03 

 2.64 

 2.48 

 2.23 

 2.17 



0.0686 



,0313 

 ,0316 

 ,0450 

 ,0447 

 ,0413 



.0205 

 ,0440 

 ,0615 



2.0 



1.5 

 2.2 



4.8 

 7.9 



2.1 

 3.6 

 3.9 



.0643 



.0518 

 .0756 

 .1065 



1.7 

 2.9 

 4.3 



1056 



4.9 



Grams. 

 3.50 



2.07 



1.42 



1.01 



.49 



.50 



1.14 

 1.41 

 1.64 

 1.90 

 1.91 



3.21 

 2.83 

 2.65 

 2.39 

 2.41 



.0320 

 .0418 

 .0450 

 .0423 

 .0408 



.0355 

 .0422 

 .0593 

 .0670 

 .0709 



.0675 

 .0840 

 .1043 

 .1093 

 .1117 



1.5 

 2.9 

 4.5 



8.6 



8.2 



3.1 

 3.0 

 3.6 

 3.5 



3.7 



2.1 

 3.0 

 3.9 

 4.6 

 4.6 



