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the plots sown in the ordinary way, except on plants growing 

 along a depression or water-furrow and in other spots near 

 the edges of the plots and adjacent to the inoculated plots. 

 These spots were greener than the other portions of the non- 

 inoculated plots, and their location (in depression and along 

 the border of the non-inoculated plots adjacent to the 

 inoculated plots) indicated that the plants in these green 

 spots had become inoculated by seed dragged from adjacent 

 plots, or by the drainage water from the inoculated plots. 

 This accidental inoculation of a part of the plots to which no 

 clover germs were intentionally applied must be kept in 

 mind when noting the yields. 



During all of March and April the plants on Plots 1 and 3. 

 grew luxuriantly. The plots not inoculated made almost no 

 growth in March (except on the spots accidently inoculated 



CRIMSON CLOVER. 

 18 Non-inoculated plants. 18 Inoculated plants. 



as above) and acquired a decided yellowish color. In April 

 some of the non-inoculated plants, then not over two inches 

 high, died, apparently from nitrogen starvation. Others had 



