CONTRIBUTIONS FROM THE WISLEY LABORATORY. 247 



7 per cent, in their weight, and 6 per cent, in the weight of the peas they 

 contained, and the decrease was shown consistently by every variety. 



By dividing the number of pods into the total weight of the pods the 

 average weight of a pod may be obtained. It will be seen that it scarcely 

 varies in the two cases, though that from the inoculated is slightly the 

 less, while the average weight of the peas contained in the pods is also 

 slightly less than that from the uninoculated. 



Falloived Ground. — Turning now to the fallowed ground, where 

 a similar series of plots was arranged, we find the result complicated by 

 the gradual fall off in the depth of the soil towards the top of the series of 

 plots (fig. 38). This factor must be borne in mind in considering the 

 tables which follow. Another point of importance, interfering with the 

 result of this part of the trial, was the very unequal number of plants, in 

 the rows of 4 Maincrop ' particularly. In order to show where the latter 

 point interfered with the result in a marked manner, where the difference 

 in the number of plants was great, the number is given as a footnote to 

 the table. 



TABLE H. 



Produce of Plots XIII. and XIV. Soil Inoculated, but not Manured. 





Plot XIII. 

 Seed not inoculated 



Plot XIV. 

 Seed inoculated 



Percentage increase 

 or decrease 



Variety 





















No. of 

 pods 



Wt. of 

 pods 



Wt. of 



peas 



No. of 

 pods 



Wt. of 

 pods 



Wt. of 

 peas 



No. of 



pods 



Wt. of 

 pods 



Wt. of 

 peas 



Ne Plus Ultra . 

 Duke of Albany . 

 Telegraph . 

 Maincrop . 



643 

 388 

 529 

 487 



grs. 

 5,222 

 4,261 

 4,893 

 3,428 



grs. 

 2,543 

 1,360 

 1,710 

 1,562 



604 

 463 

 578 

 527 



grs. 

 4.952 

 5,045 

 5,753 

 3,875 



grs. 



2,585 

 1,630 

 2,045 

 1,928 



- 7 

 + 19 



+ 9 

 + 8 



-6 

 + 18 

 + 17 

 + 13 



+ 1 

 + 19 

 + 19 

 + 23 



Totals . 



2,047 



17,804 



7,175 



2,172 



19,625 



8,188 



"Te 



+ 10 



+ 14 



In this case there is, in the aggregate, a gain of 10 per cent, in the 

 inoculated plot, while, with the exception of ' Ne Plus Ultra,' all the 

 weighings show an increased yield from the inoculated seed. 



TABLE I. 



Produce op Plots XV. and XVI. Soil neither Inoculated nor Manured. 



Variety 



Plot XVI. 

 Seed not inoculated 



Plot XV. 

 Seed inoculated 



Percentage increase 

 or decrease 



No. of 

 pods 



Wt. of 



pods 



Wt. of 

 peas 



No. of 

 pods 



Wt. of 

 pods 



Wt. of 

 peas 



No. of 

 pods 



Wt. of 

 pods 



Wt. of 

 peas 



Ne Plus Ultra . 

 Duke of Albany . 

 Telegraph . 

 Maincrop* . 



646 

 332 

 580 

 325 



grs. 

 5,260 

 3,671 

 5,972 

 2,418 



grs. 

 2,531 

 1,062 

 2,074 

 1,115 



6,782 



628 

 363 

 631 

 519 



2,141 



grs. 

 5,029 

 1,()7I 

 6,378 

 4,126 



grs. 

 2,448 



1,290 

 2,225 

 2,000 



-3 

 + 9 

 + 8 

 + 59 



— 5 

 + 10 



+ 6 

 + 70 



-4 

 + 21 



+ 7 

 + 78 



Totals . 



1,883 



17,321 



19,604 



7,963 



+ 13 



+ 13 



+ 17 



* Number of plants from non-inoculated seed, 35; number from inoculated 

 seed, 46. 



