Figure 69. Briarcliff rose buds. A, left to right: 1, normal control bud; 2, bud from plant in 

 muslin cage where the soil bearing 14 other plants had been watered with 0.05 per cent mercuric 

 chloride; 3 and 4, buds from plants in muslin cage in which the soil bearing the plants had been 

 watered with 0.05 per cent mercuric chloride. B, left to right: 1, normal bud from control glass 

 case; 2, 3, and 4, buds from plants in glass case where the soil bearing three other plants had 

 been watered with 0.05 per cent mercuric chloride. 



