FUTURE ABODE OF ANIMALS 227 



tance of the planets from the central sun does not 

 determine the condition as to light and heat, but 

 that the density of the ethereal medium enters 

 largely into the calculations. Neither on account 

 of deficient or excessive heat, nor with regard to 

 the density of the materials, nor with regard to the 

 force of gravity on the surface is there the slightest 

 pretext for supposing that all the planets of our 

 system are not inhabited by living beings with 

 animal bodies like our earth." 



Richard A. Proctor, one of the most profound 

 mathematicians and astronomers of this age, has 

 written a book in which he gives reasons for his 

 belief in a plurality of worlds with living beings. 

 In speaking of some of the planets he says : " But 

 shall we recognize in them all that which makes 

 our own world so well fitted to our wants, such as 

 land and water, mountains and valleys, cloud and 

 sunshine, rain and snow, rivers and lakes, ocean 

 currents and wind currents, without believing in 

 the existence of forms of life ? 



" They exhibit in the clearest manner the traces of 

 adaptation to the wants of living beings such as we 

 are acquainted with. . . . Processes are at work 

 out yonder in space which appear utterly useless, a 



