EARTH-LIFE. 93 



degrees of the heat-scale of the universe 

 possibly a hundred thousand degrees can 

 have its corresponding life, which everywhere 

 may be the movement from the Inorganic, 

 through the Organic to the Psychic, the latter 

 being the outcome and end of Nature. 



Our Earth-life, accordingly, is for us the all- 

 embracing Life, its final real circumscription ; 

 but ideally we may regard it as a mere cell 

 of the universal Life, no more comparatively 

 than one of its brief unicellular organisms, a 

 microbe of the living Universe. We should 

 emphasize, however, that each individual life, 

 minute as it may be, has in it the total process 

 of the Earth-life, which also begins, flourishes 

 and passes away. Again we have to re-think 

 and re-apply the thought that every, part of a 

 Whole, in order to be such a part, must have 

 in it the movement of that Whole. Earth- 

 life is, therefore, a needed element of the Bio- 

 cosnios, which is to include the totality of Life. 

 We may here state that science has made 

 little use of the conception of Earth-life, 

 though it would seem to be the necessary com- 

 plement of individual life, vegetal and animal. 

 These two vital forms have filled the horizon 

 of the biologist. And the past products of 

 the Earth in its long evolution, organic and 

 inorganic, have been set forth in the science 

 of Geology, which ought to reveal to us not 



