Anderson: growth of cucurbita. 277 



19. The variations in length of the internodes occured simul- 

 taneously with corresponding increase and decrease of the 

 weight of the fruit. 



20. The percentage of variation of weight of a fleshy fruit 

 attendant on growth, was much more marked than variations in 

 measurement of internodes. In the former instance, the fruit 

 consisted of a mass of parenchymatous cells whose contents are 

 highly endosmotic, and in the latter instance, the internode 

 consists only in a small proportion of such cells, while it con- 

 tains a strong development of mechanical tissue which offers a 

 marked resistance to changes in size. 



