262 



SCIENTIFIC AGRICULTURE 



June, 1921. 



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PLATE 68. 



A.— Soybean bacteria, J. K. Wilson's strain. 4 days old. 



B. — Vetch bacteria, 3 days old. 



C. — Bacillus radiobacter, 2 days old. 



D. — Soybean bacteria, beef agar, 4 days old. 



E. — Red clover bacteria, beef agar, 4 days old. 



F. — Bacilbts radiobacter, beef agar. 4 davs old. 



G.— Cowpea bacteria, potato, 6 days old. 



H — Red clover bacteria, potato, 14 days old. 



I. — B. radiobac'er, milk, 7 days old. 



J. — Cowpea bacter/a mannite-nitrate agar, 8 days o'd. 



K. — Vetch bacteria, mannite-nitrate agar, 8 days old. 



L.— B. radiobacler. mannite-nitrate solution, 17 days c 



A— C Loeffler's stain: D — L aqueous fuchsin. A'^OOO. 



