Chapter XXVIII: Appendix: A

BAROMETRICAL MEASUREMENTS ACROSS SOUTH AMERICA.[188]

[Footnote 188: First published in the _American Journal of Science_ for September, 1868, to which the reader is referred for other physical observations. The barometric anomaly, noticed particularly on the Lower Amazon, was also observed by Herndon, Castelnau, Chandlers, Spruce, and Wallace.]

+----------+---------+----------+-------+----------+-----------+---------------+ |Locality. |Altitude.|Barometer.|Boiling|Regnault's|Difference.|Other | | | | | Point.| Equiv. | |Estimates. | +----------+---------+----------+-------+----------+-----------+---------------+ | | | | ° | | | | |Pacific | 0 | 29.930| 212.01| | |_Bar._ of | | Ocean | | | | | | Visse, 29.904;| | | | | | | | Boussingault, | | | | | | | | 29.867. | |Guayaquil | 10| 29.899| 211.95| 29.831| -.008|_B.P._ of | | | | | | | | Visse, 211.8° | |Guaranda | 8,840| 21.976| | | |_Alt._ of | | | | | | | | Visse, 8872; | | | | | | | | Hall, 8928. | |Arenal | 14,250| 18.123| | | |_Alt._ of | | | | | | | | Visse, 13,917;| | | | | | | | Hall, 14,268. | |Mocha | 10,900| 20.393| | | | | |Ambato | 8,490| 22.241| | | |_Alt._ of | | | | | | | | Visse, 8541; | | | | | | | | Boussingault, | | | | | | | | 8787. | | | | | | | |_Bar._ of | | | | | | | | Jameson, | | | | | | | | 22.218. | |Tacunga | 9,181| 21.693| | | |_Alt._ of | | | | | | | | Visse, 9180; | | | | | | | | Boussingault, | | | | | | | | 9384. | | | | | | | |_Bar._ of | | | | | | | | Jameson, | | | | | | | | 21.700. | |Tiupullo | 11,662| 19.858| | | |_Alt._ of | | | | | | | | Visse, 11,702.| |Machachi | 9,900| 21.212| | | |_Alt._ of | | | | | | | | Visse, 9823. | |Quito | 9,520| 21.530| 195.8| 21.485| -.045|_Alt._ of | | | | | | | | La Condamine, | | | | | | | | 9596; | | | | | | | | Humboldt, | | | | | | | | 9570; Caldas, | | | | | | | | 8947; | | | | | | | | Boussingault, | | | | | | | | 9567; Aguilar,| | | | | | | | 9496; Visse, | | | | | | | | 9307; Bureau | | | | | | | | des Longs., | | | | | | | | 9540; | | | | | | | | Tramblay's | | | | | | | | _Ann._, | | | | | | | | 9538; | | | | | | | | Jameson, 9513.| | | | | | | |_Bar._ of | | | | | | | | La Condamine, | | | | | | | | 21.404; | | | | | | | | Humboldt, | | | | | | | | 21.403; | | | | | | | | Aguilar, | | | | | | | | 21.465; | | | | | | | | Jameson, | | | | | | | | 21.566. | | | | | | | |_B.P._ of | | | | | | | | Visse, 195.6°;| | | | | | | | Tramblay, | | | | | | | | 184.18°. | |Panecillo | 10,101| 21.043| | | |_Alt._ of | | | | | | | | Humboldt, | | | | | | | | 10,244; | | | | | | | | Aguilar, | | | | | | | | 10,135. | | | | | | | |_Bar._ of | | | | | | | | Jameson, | | | | | | | | 21.207. | | | | | | | |_B.P._ of | | | | | | | | Visse, 194.7° | |Pichincha,| 15,827| 17.038| 184.5| 17.030| -.008|_Alt._ of | | top | | | | | | La Condamine, | | | | | | | | 15,606; | | | | | | | | Humboldt, | | | | | | | | 15,922; | | | | | | | | Boussingault, | | | | | | | | 15,676; Visse,| | | | | | | | 16,200; Hall, | | | | | | | | 15,380; | | | | | | | | Jameson, | | | | | | | | 15,704. | | | | | | | |_Bar._ of | | | | | | | | Visse, 16.942.| |Pichincha,| 13,300| | 189.2| 18.672| |_Alt._ of | | crater | | | | | | Visse and | | | | | | | | Moreno, | | | | | | | | 18,600. | |Antisana | 13,300| 18.583| | | |_Alt._ of | | H. | | | | | | Humboldt, | | | | | | | | 13,465; | | | | | | | | Boussingault, | | | | | | | | 13,356. | | | | | | | |_Bar._ of | | | | | | | | Aguirre, | | | | | | | | 18.573; | | | | | | | | Jameson, | | | | | | | | 18.630. | |On | 16,000| 16.782| | | | | | Antisana| | | | | | | |Pinatura | 10,410| 20.791| | | |_Alt._ of | | | | | | | | Boussingault, | | | | | | | | 10,348. | |Padregal | 11,860| 19.817| | | | | |On | 12,690| 19.004| | | | | | Cotopaxi| | | | | | | |Riobamba | 9,200| 21.705| | | |_Alt._ of | | | | | | | | Visse, 9157; | | | | | | | | Boussingault, | | | | | | | | 9413. | |Cajabamba | 10,918| 20.512| | | |_Alt._ of | | | | | | | | La Condamine, | | | | | | | | 11,000. | |Itulcachi | 8,885| 22.006| | | | | |Tablon | 10,516| 20.800| | | | | |Papallacta| 10,511| 20.803| 193.8| 20.598| -.205| | |Guila | 8,622| 22.206| | | | | |Pachamama | 7,920| 22.751| | | | | |Baeza | 6,625| 23.793| | | | | |Cochachim-| 4,252| 25.832| | | | | | bamba | | | | | | | |Curi-urcu | 3,247| 26.746| ° | | | | |Archidona | 2,115| 27.816| 209.00| 28.180| +.364| | |Napo | 1,450| 28.419| 209.4 | 28.407| -.012| | |Santa Rosa| 1,100| 28.814| 210.4 | 28.982| +.168| | |Coca | 858| 29.022| 210.65| 29.127| +.105| | |Mouth of | 586| 29.321| 211.00| 29.331| +.010| | | the River| | | | | | | | Aguarico| | | | | | | |Do. River | 500| 29.408| 210.8| 29.215| -.193| | | Curaray| | | | | | | |Do. River | 385| 29.526| 211.4| 29.566| +.040|_Alt._ at | | Napo | | | | | | Nauta, by | | | | | | | | Castelnau, | | | | | | | | 365. | |Pebas | 345| 29.510| 211.1| 29.390| -.120|_Alt._ of | | | | | | | | Herndon, 537. | | | | | | | |_B.P._ of | | | | | | | | Herndon, | | | | | | | | 211.1°. | |Loreto | | | 211.4| 29.566| | | |San | 256| 29.655| | | | | | Antonio | | | | | | | |Tabatinga | 255| 29.656| 211.5| 29.625| -.041|_Alt._ of Spix | | | | | | | | and Martius, | | | | | | | | 670; | | | | | | | | Azevedo and | | | | | | | | Pinto, 150; | | | | | | | | Agassiz, 200. | |Tunantins | 138?| 29.770| | | |_Alt._ of | | | | | | | | Azevedo and | | | | | | | | Pinto, 124. | |Ega | 100?| 29.813| 211.9| 29.862| +.049|_Alt._ of | | | | | | | | Herndon, 2052;| | | | | | | | Azevedo and | | | | | | | | Pinto, 120. | | | | | | | |_B.P._ of | | | | | | | | Herndon, | | | | | | | | 208.2°. | |Manáos | 199?| 29.705| | | |_Alt._ of | | | | | | | | Herndon, 1475;| | | | | | | | Castelnau, | | | | | | | | 293; Spix and | | | | | | | | Martius, 556; | | | | | | | | Azevedo and | | | | | | | | Pinto, 92. | | | | | | | |_B.P._ of | | | | | | | | Herndon, | | | | | | | | 209.3°; | | | | | | | | Gibbon, | | | | | | | | 210.87°; | | | | | | | | Wallace, | | | | | | | | 212°.5. | |Serpa | 158?| 29.752| | | |_Alt._ of | | | | | | | | Azevedo | | | | | | | | and Pinto, 84.| |Obidos | 114| 29.802| | | |_Alt._ of | | | | | | | | Azevedo | | | | | | | | and Pinto, 58;| | | | | | | | Agassiz, 45. | |Santarem | 107| 29.808| 211.5| 29.625| -.183|_Alt._ of | | | | | | | | Herndon, 846; | | | | | | | | Azevedo and | | | | | | | | Pinto, 50. | | | | | | | |_B.P._ of | | | | | | | | Herndon, | | | | | | | | 210.5°. | |Mount | 83| 29.834| | | | | | Alégre | | | | | | | |Gurupá | 38| 29.890| | | |_Alt._ of | | | | | | | | Azevedo | | | | | | | | and Pinto, 42.| |Pará | 15| 29.889| 211.95| 29.891| +.002|_Alt._ of | | | | | | | | Herndon, 320; | | | | | | | | Azevedo and | | | | | | | | Pinto, 35; | | | | | | | | Dewey, 35. | | | | | | | |_Bar._ of | | | | | | | | Herndon, | | | | | | | | 29.708; Dewey,| | | | | | | | 29.941; Orton | | | | | | | | (reduced to | | | | | | | | level of | | | | | | | | river), | | | | | | | | 29.914. | | | | | | | |_B.P._ of | | | | | | | | Herndon, | | | | | | | | 211.5°. | |Atlantic | -2| 29.932| 212.16| | |_Bar._ of Dewey| | Ocean | | | | | | 29.977. | +----------+---------+----------+-------+----------+-----------+---------------+