OKIGIN OF THE TEEM CELL 



37 



confirmed by Nehemiah Grew, who published his great work on 

 the Anatomy of Plants in 1672. 



It is now a matter of common knowledge that many vegetable 

 tissues, such as cork and pith, when seen in section under the 

 microscope, exhibit a honeycomb-like appearance, being composed 



CortH 



V- 



PHKS 





Fia. 7. Part of a cross Section of a Maize Root, showing cellular 



Structure, X 84. (From a photograph.) 



Cort., cortex; pi., pith; V., vessels. 



of rectangular or polygonal, or it may be spherical chambers 

 separated from one other by firm walls. This structure is very 

 well shown in Fig. 6, which represents part of a thin section of an 

 ordinary bottle cork, and in Fig. 7, which represents part of a 

 transverse section of a root of maize. It was the resemblance to 

 a honeycomb that led to the application of the term cell to 

 these chambers. The earlier observers naturally attached most 



