It was reported in The Times that Messrs. Yarrow and Hedley of Poplar, had built a (length, 33 ft.; beam, 8 ft. 6 in.; draught, 3 ft.) steam launch fitted with a pair of 5.5 in. by 6.5 in. stroke high-pressure engines operating at 250 revolutions per minute on steam supplied at a pressure of 75 pounds per square inch, to be used in the laying of the United States telegraph cable.