354 HULL SVSIIiM II.CIIMCAL JOIRXAL 



Just what other work Heaviside did, in addition to his published 

 writings, is not at present known to me. I beheve he left a good 

 deal of manuscript, but whether it is in such a state that it could 

 be completed by another, I do not know. Let me conclude this note 

 by an e.xtract from his last chapter of his last book, "Electromagnetic 

 Theory," \'ol. HI, page 519: — 



".As the universe is i)oundless one way, towards the great, so it 

 is ecjualK' boundless the .other way, towards the small; and im- 

 portant events may arise from what is going on in the inside of 

 atoms, and again, in the inside of electrons. There is no energetic 

 difficulty. Large amounts of energy may be very condensed by 

 reason of great forces at small distances. How electrons are made 

 has not yet been discovered. From the atom to the electron is a 

 great step, but is not finality. 



"Living matter is sometimes, perhaps generally, left out of 

 consideration when asserting the well-known proposition that the 

 course of events in the physical world is determined by its present 

 state, and by the laws followed. But I do not see how living 

 matter can be fairly left out. For we do not know where life 

 begins, if it has a beginning. There may be and probably is no 

 ultimate distinction between the living and the dead." 



