310 



Bulletin 240. 



These differences in all became more pronounced during the foUov'- 

 ing week, except in case of sunflower in which the plants in the unfer- 

 mented mushroom were no better than in the checks. April 5th a set of 

 the corn plants was photographed after being taken from the soil to show 

 injury to roots by the fermenting mushroom (See Fig. 116). 



On April 13th the sets were photographed to show the relative size 

 of the individuals growing under the different conditions, one basket of 

 each different kind or concentration of material used, and were arranged in 

 all cases from left to right as follows : pure sand, two grams dried mush- 

 room not previously fermented, two grams dried mushroom previously 

 fermented, and two-thirds gram dried mushroom previously fermented. 

 Since an accident happened soon after to one of the radish plants, these 



Fig. 121. — Buckwheat seedlings growing tn mushroom material. Photographed 

 April iTfth. From left to right the material is as jollows: First, distilled water; 

 second, not previously fermented m-ushroom material; iJiird, stronger concentration 

 of previously ferm^en.cd mushroom material; fourth, weaker concentration of pre- 

 viously fermented mushroom material. 



were not photographed again, but the corn, wheat sunflower and buck- 

 wdieat were photographed again on May 7, 1906. Since the test had con- 

 tinued long enough to get comparative results, and since the baskets 

 were not large enough to grow the corn to maturity this experiment was 

 discontinued on May i8th, and the following notes were taken at that 

 time, although the plants had been allowed to suffer slightly for the last 

 two days for want of water. 



Biickii'licat. — Check plants five to seven cm. high, with flowers on one 

 plant. Plants in fermenting material eight to tiiirteen cm. high, 

 flowers on several. Plants in stronger concentration of previously 



