1004071 A 2nd Edition of the first book written by Philip Collins on barometers. Now somewhat of a classic in the history of barometers in its own right. This extended work is an especially good guide for the professional or skilled amateur / would be barometer restorer on many points about restoration of barometers - especially the Mercury Wheel barometer which is dealt with in considerable detail. The text is much extended from his early (1990) first book. Published October 2016A Paperback (36 more pages than 1st Edition)
