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The sheets were too large to be bound conventionally in signatures of 8, 16, or 32 pages; instead, each leaf of 4 pages, supplied separately, was pasted on to a guard, which was attached to the spine of the binding. Furthermore, the text was printed letterpress and the maps from copper engravings, two quite separate printing processes. (The printing shops would have been at different locations in the city.) This required a clear plan for assembling the book:
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But the nature of the task meant that purchasers could decide exactly what to do with the plates and text, as this final note freely admits:
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