One would naturally expect that a microscope having a sufficient 

 magnification to show the individual cells of which the tissues are 

 made up would quickly exhibit the manner of their conjunction. 

 However, after having studied a large number of such specimens 

 under the microscope, the writer is compelled to report the results 

 disappointing. In nearly all cases one can see less with the micro- 

 scope than with the naked eye. 



Fit.. 4. Dyehouse Cherry on Miner Plum, showing continuous annual layers 



of wood. 



In figure 6, which is very greatly magnified, showing the cells 

 at something like 1000 times their natural diameter, the little knot of 

 scar tissue near the middle does accidentally show one point on the 

 line of junction ; but it will be seen at the same time that the vessels 

 and the parenchyma cells run uninterruptedly from end to end. 



