142 



in the inner parts of the root itself ; but, to my mind, this part of the question 

 is still very obscure. New observations in this direction would be of great value, 

 as well for the natural history of the Nematodes in genera] as for the pathology 

 of the worm disease in particular. 



Fig. 96. — Disease of Gardenia roots. 



I'.y preparing the young worms from the eggs which are to be found in 

 such great numbers in the ova-cysts, we find that the just-hatching animals must 

 be of different length and girth (fig. 96, c, d, e). The meaning of this difference 

 is not yet cleared up, and it seems possible that it may bear upon the several 

 differentiations which, if we may trust the observations of C. Muller, become 

 somewhat later very great, as illustrated in our fig. 96, in/, g, h, i. 



