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Pig. 37. — Plan of the Experiment on the Inoculation of Leguminous Plants. 

 The treatment received by soil and seed is to be read straight across the central path. Thus in Plot I. and Plot XIII. the soil was inoculated and 

 the seed was not, and so on. The plots bracketed together are to be compared with one another. They differ only in one receiving inoculated 

 seed, the other uninoculated. The dotted lines show the rows of peas. Each plot measured 36 feet by 15 feet. 



(To face page 237.) 



