30 



THE UNIVEKSE. 



depth of several hundred yards. If as many human 

 mn.mmies Avere laid one upon another they would form 

 a mountain the height of which would almost equal a 

 semi-diameter of the earth! (W. de Fonvielle). 



16. Infusoria in Tripoli, from Eiclimond, N. America, as seen -with the Microscope. 



It is very easy to verify these statements. The reader 

 has only to scrape with a knife the surface of a morsel 

 of one of these tripolis, to let the dust fall on a plate 

 of glass, and to examine it Avith the microscope after 

 having mixed it with a little water. He will be aston- 

 ished to see only carapaces of animalcules. 



The confirmation of Avhat we have said is chiefly met 

 Avith in the tripoli of Bilin in Bohemia, and in those of 

 the Isle of France. 



The learned Schleiden calculated that a cubic inch of 



