142 TERRESTRIAL ADAPTATIONS. 



been, if the properties and quantities of the 

 elements had been different from what they are. 

 We shall here recapitulate the principal of the 

 laws and magnitudes to which this conclusion 

 has been shown to apply. 



1. The Length of the Year, which depends 

 on the force of the attraction of the sun, and 

 its distance from the earth. 



2. The Length of the Day. 



3. The Mass of the Earth, which depends, 

 on its magnitude and density. 



4. The Magnitude of the Ocean. 



5. The Magnitude of the Atmosphere. 



6. The Law and Rate of the Conducting 

 Power of the Earth. 



7. The Law and Rate of the Radiating 

 Power of the Earth. 



8. The Law and Rate of the Expansion 

 of Water by Heat. 



9. The Law and Rate of the Expansion 

 of Water by Cold, below 40 degrees. 



10. The Law and Quantity of the Expan- 

 sion of Water in Freezing. 



1 1 . The Quantity of Latent Heat absorbed 

 in Thawing. 



12. The Quantity of Latent Heat absorbed 

 in Evaporation. 



13. The Law and Rate of Evaporation 

 with regard to Heat. 



