i68 



NEW YORK STATE MUSEUM 



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1 3.23' ?6'^ 



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125' 



(— '50' 



\-\75' 



SKETCH 5H0WIN0 DE- 

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 EOBTCLINOMETER. 



Scale I'V JO' 



h*^^ June 4;o7. MH2II. 



Figure 31 



