348 
On Purples or Ear-cockles in Wheat. 
with numerous large open ducts intercepted by loose cellular 
tissue, resembling medullary rays, and passing gradually into a 
thick external covering of parenchymatous cells. Throughout 
the substance of the excrescence were numerous cyst-like bodies, 
filled with a multitude of minute elliptic eggs, containing a 
coiled-up worm, and some worms had escaped from the eggs and 
were free in the cysts. Mr. Berkeley believed that the injury 
was caused by the nematoid worms. 
A similar malady has, during the past year, been observed in 
carnations. The plants were observed to be sickly, and the 
leaves were found to be covered with light-coloured spots. When 
dissected and examined under the microscope it was found that 
the spots were due to the presence in the cellular substance of 
Fig. 1. — Section of a young Plant of Wheat, six iceelcs old, with the 
principal Axis attached hy a Vibrio. 
the leaf of numerous minute worms and their oval eggs. Having 
gained access to the interior of the leaf, they pushed their way 
under the skin, destroying and consuming the soft cellular 
tissue. This so injured and weakened the plants that they were 
unable to flower. 
