Professor Hall is inclined to think that all differences observed 

 in Professor Bottomley's experiments are within the limits of experi- 

 mental error. 



Experiments with Nitro-bacterine at Wisley. (Journal of 

 the Royal Horticultural Society, Vol. 35, part III, p. 391). The 

 Gardeners Chronicle, No. 3616, p. 248, April 16, 1910. 



Trials with nitro-bacterine were carried out at Wisely during 

 the summer of 1909. The plant selected for inoculation was the 

 French Bean, variety Canadian Wonder. A dressing of chalk was 

 applied to the ground, the land was then bastard trenched, but 

 no manure was added. The nitro-bacterine that is the prepara- 

 tion of the bacterium Rhizobium leguminosarum was presented by 

 Prof. Bottomley. 



The results indicate that neither the steeping of the seed in 

 nitro-bacterine nor watering the soil therewith, effects any increase 

 in the crop. A comparison of yields from the inoculated and 

 uninoculated plots gave the following average icsults: 



Plots inoculated once, produce .... 787 grams 

 Plots inoculated twice, produce . . . . 727 

 Plots uninoculated, produce 782 



Attempts to increase the yield of non-leguminous crops by the 

 use of nitro-bacterines gave similar negative results. The experi- 

 mental evidence indicates that the nodule bacterium is so widely 

 distributed in the soil of England that inoculation of sown seed 

 takes place inevitably and that the artificial inoculation of seed 

 with cultures of the nodule organism is superflous. 



J. AUGUSTUS VOELCKER. Inoculation Experiments at Woburn. 



Journ. of the R. Agric. Soc. of England, Vol. 70, 1909, 

 pp. 362-388. 



The field experiments on inoculated lucerne and white clover, 

 begun in 1908, were continued, although those with Argentine lu- 

 cerne suffered much from fungoid attack and were not continued 

 after the first cutting. The white clover continued quite good. 



The inoculation with "nitro-bacterine" was renewed by spread- 

 ing, on the plots, soil which had been treated with the preparation. 

 This was done on June 3rd, 1909. 



