548 MR. J. B. LAWES, DR. GILBERT, AND DR. PUGH ON 
C.—ABSTRACT OF THE RECORDS OF GROWTH OF THE PLANTS. 
I.—PLants GROWN IN 1857 *. 
The following list indicates the original arrangement of the experiments in 1857; 
but, as the records will show, beans sown and resown under shades Nos. 5, 10, and 11 
died before they had attained any material amount of growth; and hence the products 
in these cases were not submitted to analysis. 
Series 1. With no other combined nitrogen than that contained in the seed :— 
1. Wheat; in prepared soil. 
2. Barley; in prepared soil. 
3. Barley; in prepared pumice. 
4, Beans; in prepared soil. 
5. Beans; in prepared pumice. 
Series 2. With a supply of known quantities of combined nitrogen beyond that con- 
tained in the seed :— 
6. Wheat; in prepared soil. 
7. Wheat; in prepared pumice. 
8. Barley; in prepared soil. 
9. Barley; in prepared pumice. 
10. Beans; in prepared soil. 
11. Beans; in prepared pumice. 
And also— 
12. Wheat, Barley, and Beans, together; in rich garden soil. 
RECORDS OF SOWING, AND Earuy STAGES OF GROWTH, OF ALL THE PLANTS COLLECTIVELY. 
May 12.—The weighed seeds of wheat (Nos. 1, 6, & 7), of barley (Nos. 2, 3, 8, & 9), 
and of beans (Nos. 4, 5, 10, & 11) were respectively put into small bottles, a few 
septems of pure distilled water added to soak them, and then corked up. 
May 16.—The wheats (Nos. 1, 6, & 7), and the beans (Nos. 4, 5, 10, & 11), were 
sown, and the pots removed to their places on the stand, and covered with the shades ; 
seeds all swelled ; some sprouting. 
_ May 20.—The barleys (Nos. 2, 3, 8, & 9), freshly weighed seeds (the soaked ones 
being abandoned), were set, and the pots removed to their position under the shades. 
May 27.—Nearly all show shoots above the surface, all of which look green and 
healthy. 
June 2.—Wheat and barley plants two or three leaves each, healthy, but pale green. 
No. 4 beans (soil) healthy and vigorous. No. 5 beans (pumice) one plant up, with 
three leaves speckled with black spots; the other plant blackened and apparently dead. 
Beans No. 10 (soil) and No. 11 (pumice) slightly speckled with black spots. 
June 3.—Commenced the daily passage of washed air over the plants, in quantity 
* The figures (Plate XV.) of the plants grown in 1857 are reduced from drawings taken, for the most 
part, about the middle of August.- ; 
