The following text is taken from Appendix A - Details of Illustrations:
This figure is one of the few illustrations known to originate from the original plans of Penarth Dock. The figure was copied from an illustration appearing in 'Docks and Harbours' by L. F. Vernon-Harcourt and labelled at Plate 14, figure11.
Originally it was represented to a scale of 1:200, however, for the sake of clarity it has been copied to a scale of 1:100. (please note it is not at this scale on this website) The illustration in the book was based on the plans of the dock lent to Vernon-Harcourt by J. C. Hawkshaw, the engineer responsible for Penarth Dock. [correction: J. C. Hawkshaw was perhaps confused with John Clarke Hawkshaw, born 1841, who was involved in the dock extension of 1884 - the engineer responsible for Penarth Dock at that date was his Dad, always simply referred to as John Hawkshaw; until, that is, he became Sir John!]
It is worth pointing out that the original illustration shows the difference between H.W.O.S.T. and H.W.O.N.T. to be about 6 feet. This does not agree with other sources and Vernon-Harcourt mentions this in his book but no attempt has been made to correct the illustration. Figure 9 shows the correct figure of approximately 10 feet.
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