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IOWA ACADEMY OF SCIENCE Vol. XXVI, 1919 



to a depth of at least eight hundred feet, that being the least 

 depth, as shown by the miner's daily "log", to the solid material 

 at the south edge of the pit. Borings very much deeper 



■ ^'?.- 99— -Looking south across the crater from the top of the north side of the 

 run splash. 



than this at the center of the pit failed to reach the buried 

 meteor, probably because it entered the earth at an angle. There 

 still remains six bunded feet of unfilled pit. and the time elapsed 

 since the meteor fell may be dimly guessed at by the very slight 



