28 IN STARRY REALMS. 



detain us. We have also the correlative truth that if a 

 body loses heat by radiation it follows as a necessary con- 

 sequence that it must be contracting in dimensions ; of 

 course it may usually be added that the body is also losing 

 temperature, but this is not invariably the case. After 

 heat has been lost by radiation without being compensated 

 by an accession of heat from some external source, the 

 total supply of heat, or of what is equivalent to heat, is of 

 course lessened. Owing, however, to the shrinking of 

 material which has taken place the quantity of heat which 

 remains in the body is distributed over a lessened volume. 

 It may therefore conceivably happen that though a body 

 is losing heat, and therefore contracting, yet that, as the 

 heat which remains is concentrated within a diminished 

 bulk, it may actually show a higher temperature than the 

 body had before the heat was lost. 



The point I am here trying to explain may be illus- 

 trated as follows. Suppose that a man maintains a very 

 large establishment in town, with troops of servants and a 

 stable full of horses, a yacht, a place in the country, a 

 shooting-lodge in the Highlands, and a villa in the south 

 of Europe. He must have a very large income to main- 

 tain his position in this fashion, and the income is pro- 

 vided by a fine estate. Suppose that by some reverse of 

 fortune the man loses a part of his property, his income is 

 diminished in corresponding proportion, and he at once 

 begins to curtail his expenses. He sells his yacht, lets his 

 Highland shooting, throws up his villa, reduces his hun- 

 ters, dismisses half his servants, and curtails his establish- 

 ment in many other directions. He so lessens the area of 

 his expenses that he has brought them into conformity 



