T>atua4:tu}ns Sociely Naval ArchttrcU ntui Mariiu- Engitu-crj, Vol. 18. 1910. 



To iUuslrate paper on "Evolution of Screw Propulsion in the United Slates, 

 by Charles H. Cramp, Esq., Vice-President . 



5 5 PENNSYLVANIA-OHIO- INDIANA- ILLINOIS. 



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