The diagram shown is of the New York Shipbuilding Company's works which Merz visited during his trip to the USA and Canada in March and April 1901. In a letter to his partner, William McLellan, he said that they were “perhaps the most interesting works I have seen while over here—quite modern …” He commented that he was impressed by many special tools developed for specific tasks, and concluded that “I did not expect to find such fine shipbuilding works … There is no doubt however about the superiority of the works.”
However, in one important area, he was not converted by the American experience. He concluded "that 3-phase distribution is really right in spite of the universal adoption of direct current in the larger towns here. Neptune Bank, the first 3-phase electricity supply system in Great Britain, was opened by Lord Kelvin on 18 June 1901.
Merz went on to a distinguished career in electrical engineering. The firm he founded in 1899, Merz & McLellan, became one of the major firms in the country. Merz himself designed many major innovative schemes, including "super power stations", North East coast integration and much of the National Grid. He was one of the finest engineers of his generation and deserves recognition for his many achievements.