[HARRISON & BARLOW] NODULE ORGANISM OF THE LEGUMINOSAE 231 



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■iU. Three tiask cullures taken ID. II. Ol». 1 Flask VII containing two pea seeds 

 planred Nov. 29th, 1005. It wa.s not inoculated. No bacteria were pre- 

 sent and no nodules developed. 



2. Flask X containing two pea seeds inoculated 12. IX. 05. The plant 

 which livpd had eight nodules, at the time the photograph was taken. 

 May 7th it had 80. 



3. Flask VIII planted on 12.12.05 with one germinating pea and one 

 germinating vetch seed. Inoculated with Ps. radicicola obtained from 

 vetch. 10 nodules developed on the vetch, none on the pea. 



