Measurement of vessels for the Panama canal (1913)
Johnson, Emory R. (Emory Richard), 1864-1950, United States. War Dept · Washington, Govt. Print. Off. · leaf 277
Fig. 6.—Forecastle. bb > J aa. cc < J aa. E = space exempted. M = space measured. … bb < J aa. E = space exempted. M = space measured. Fig. 7.—Bridge.
