THE DEFINITIONS OF SCIENCE EE-DEFINED. 247 



consists of separate definite units. These units, if they 

 could be obtained in a state of rest, would, it is deemed, 

 have no mass whatever. Whether, under these conditions 

 they would have spatial dimension is not known. 



Mass: Page 184. 



A unit of negative electricity in motion carries along or 

 drags with it a portion of the surrounding ether. This 

 "bound" ether carried by the moving negative unit is what 

 we call mass. The mass of all matter is believed to be due 

 solely to the amount of ether dragged along by the moving 

 electrical units. 



Corpuscle: Pages 65 and 184. 



A moving unit of negative electricity together with its 

 bound ether is a corpuscle. The mass of a corpuscle de- 

 pends upon the amount of bound ether connected with the 

 moving unit and this depends on the velocity. The average 

 mass of a corpuscle is about one one-thousandth of that of a 

 hydrogen atom. Corpuscles may exist free from matter. 



Atom: Pages 10 and 171. 



A congeries of corpuscles surrounded and balanced by a 

 sphere of positive electricity is an atom. The weight of the 

 atom is due to the weight of the constituent corpuscles, and 

 the properties of the atom are due to their number and ar- 

 rangement. Since it takes a large number of corpuscles to 

 constitute an atom its structure is thus extremely complex. 



Chemical Union: Page 167. 



Certain corpuscular aggregations will hold in an unstable 

 condition a few more corpuscles than exactly suffices to bal- 

 ance the surrounding sphere of positive electricity. The 

 atom consisting of them is thus as a whole negatively 

 electrified. Other arrangements will hold a few less cor- 

 puscles than suffices to balance the positive electricity. 

 This leaves the atom positively electrified. If these two 



