562 MR. J. B. LAWES, DR. GILBERT, AND DR. PUGH ON 
No. 3.—Oats (1858); eight seeds; prepared soil; without nitrogenous manure. 
(See Plate XV. fig. 6.) 
April 27.—Seeds set, and the pot placed under a shade over sulphuric acid. 
May 7.—The pot removed to its shade on the stand. 
May 22.—A pipette-ful of the sulphuric-acid solution added. 
May 29.—Kight plants, 4 to 6 inches high; four or five leaves each; lower ones 
yellow, upper ones green and growing. These Oats growing rather better than either 
No. 1 Wheat, or No. 2 Barley. A pipette-ful of the phosphate-solution added. 
June 7.—A pipette-ful of the phosphate-solution, and a pipette-ful of the sulphuric- 
acid solution added. 
June 19.—Eight plants, 6 to 9 inches high; five or six leaves each, lower yellow and 
dead, upper green. ‘Tips of some of the leaves injured by action of direct sun-rays. 
{General note-—White paper had been tied over all the shades to screen from the 
direct rays of the sun; but in this case not quite high enough. ] 
June 26.—Eight plants; five 10 to 11 inches high, and in head; three 8 to 9 inches 
high; no appearance of heading, and two of them a green shoot at the base. Six or 
seven leaves on each plant. The rachis of the seeding plants long and crooked, with 
one or two seeds at top, without signs of seed below. All the plants apparently at 
termination of growth; remain only to see how far they will ripen. 
July 3.—A pipette-ful of the phosphate-solution, and a pipette-ful of the sulphuric- 
acid solution added. 
July 18.—Plants taken up :— 
Eight plants, quite dead ripe for some days, having had a hot sun. 
Plant (1) 135 inches high ; five leaves; rachis 1} inch long, with one seed. Plant (2) 
11} inches high ; five leaves; rachis1$inch. Plant (3) 12{inches high; five leaves; rachis 
1} inch long, with two seeds. Plant (4) 124 inches high; with shoot appearing at base; 
rachis 13 inch long, with two seeds. Plant (5) 114 inches high; five leaves; with shoot 
appearing at base. Plant (6) 9 inches high; five leaves; and shoot at the base, 4 inches 
long. Plant(7) 10 inches high; five leaves; and shoot at the base 4incheslons. Plant 
: : : 8 
(8) 103 inches high; five leaves; rachis 14 inch long, two seeds. Roots only extended 
about 2 inches deep in the pot. Soil wet and soft; the lower part firm, but not hard. 
Preparation and analysis as described at pp. 543, 544. 
No. 4.—Beans (1858) ; three seeds ; prepared soil; without nitrogenous manure. 
April 27,—Seeds set, and the pot placed under a shade over sulphuric acid. 
May 20.—Pot removed to its shade on the stand. Three plants up, 23 inches high ; 
three leaves on each; dark green and healthy. = 
May 22.—A pipette-ful of the sulphuric-acid solution added. 
May 29.—Plants 3 to 4 inches high; one looks to be dying; the others have specks 
on their leaves. A pipette-ful of the phosphate-solution added. 
June 7.—A pipette-ful of the phosphate-solution, 
and a pipette-ful of th rice 
acid solution added to the soil. ad a 
