NEW PLUMS AND PRUNES 145 



cosm of the plant or animal cell should have 

 found means to pass beyond the range of vision 

 of the microscope and reveal something of the 

 intimate nature of the events that are taking 

 place in the world of molecule and atom and 

 electric particle. 



AID FROM THE MICROSCOPE 



In point of fact the invasion of the world of 

 the infinitely little by the modern biologist has 

 been no less wonderful than the exploration 

 of the world of the infinite vastness by the 

 astronomer. 



And perhaps it should not seem strange to 

 anyone who has a philosophical conception 

 of the underlying harmonies in nature, that 

 the conditions revealed in the microcosm of 

 the living cell should suggest in many ways 

 an epitome of those made manifest in the 

 macrocosm. 



Such, at all events, is the message that the 

 modern biologist and physicist bring us from the 

 world of infinite littleness. Making the first 

 stages of their invasion with the aid of a micro- 

 scope, they show us that all living tissues, veg- 

 etable or animal, are composed of cells, and that 

 within each cell there is a vitally important cen- 

 tral structure called the nucleus. 



