This issue contains an uncoloured three-leaf folding map in two parts; the lower two-thirds consist of a plan of 'St Petersburg with its Fortifications, Built by Peter the Great in 1703,' and the upper third contains a map of the 'Harbour of Crownslot' with 'the River Neva' with 'Canal Made from the Said River to the R. Wolschowa.' The map is in very good condition, there are a handful of light spots, plus some very mild toning more generally, but the impression is strong and there are no markings. Approximate size of the two maps together 24.5 x 18.5 cm. Among other inclusions two further plates: the first showing 'the draught of a very curious machine for measuring the expansion and contraction by heat and cold', invented by Mr Withurst of Derby, and a 'new Swedish water-bellows for forges'; and the second showing 20 Noblemen's Arms. Both plates are clean and bright. The magazine printed by Edward Cave, jun., complete in 48 pages and three plates, with original blue printed wraps a