[Printed HMSO pamphlet.] Barometer Card and Storm-Warning Signals.

5pp., 8vo. On two bifoliums, with four of the eight sides blank, with the reason for the arrangement stated at the head of the title: 'N.B. - The four pages following this Title may be separated, and pasted on a board.' In fair condition, on aged paper, with remains of the paper on which the two bifoliums were mounted on the blank reverses of the second leaves of both. Contemporary ownership inscription at head of title of William Dole Bushell of Taff Vale Railway. The pamphlet contains two pages of text describing the use of a 'staff and two canvas shapes' to make various signals, a page of diagrams of these 'Cautionary Signals' and 'Night Signals', and another page carrying 'contractions' and a 'Summary'. The text concludes: 'It should be kept in mind that these signals are merely cautionary, to give notice of much atmospheric disturbance over some considerable part of the British Islands, without being in the least degree compulsory, or interfering with individual judgment on any occasion.' This item is excessively scarce: no copy has been traced either on COPAC or OCLC WorldCat.