Transactibm- Societv Naval Architects and Mannr Evciinccrs. Vol. i8, igio. 



Plate 20. 



To illustrate paper on "Floating Dry Docks in the United States; Relative Value of Wood and 

 Steel for their Constrtiction," by William T. Donnelly, Esq., Member. 



%. 



7000 TONS Tl DATING OHV DOCK. 



