. Travels amongst the great Andes of the equator . I discarded the usual method of suspension, and hung thebarometers from the stands belonging to the theodolite (A J K L,Fig. 2). The stability of these stands is infinitely greater thanthat of the form usually employed ; their legs can be set in andout to meet the requirements of each occasion ; and, when hungin the manner shewn in the diagram, barometers have little tend-ency to swing to and fro. No shock that is likely to occur will 56 TRAVELS AMONGST THE GREAT ANDES, chap. hi. make the cisterns move from M to N—though, if they did so,tin st
. Travels amongst the great Andes of the equator . I discarded the usual method of suspension, and hung thebarometers from the stands belonging to the theodolite (A J K L,Fig. 2). The stability of these stands is infinitely greater thanthat of the form usually employed ; their legs can be set in andout to meet the requirements of each occasion ; and, when hungin the manner shewn in the diagram, barometers have little tend-ency to swing to and fro. No shock that is likely to occur will 56 TRAVELS AMONGST THE GREAT ANDES, chap. hi. make the cisterns move from M to N—though, if they did so,tin stands would not he overturned. The actual method of suspension at A, Fig. 2, isa device of my own, and isshewn in the accompanyingengraving, which rendersdescription unnecessary. Toset out a theodolite standand hang a barometer inposition upon this catch isan affair of a few if the ordinary standis employed minutes areoccupied in the operation. The mercurial barometerread IG476 inches at on Dec. 28, 16488inches on the 29th,
Size: 1734px × 1441px
Photo credit: © Reading Room 2020 / Alamy / Afripics
License: Licensed
Model Released: No
Keywords: ., bookcentury1800, bookdecade1890, bookpublishernewyo, bookyear1894
