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Observations made in Savoy, in order to ascertain the Height of Mountains by means of the Barometer; being an Examination of Mr De Luc's Rules, delivered in his Recherches sur les Modifications de l'Atmosphere
Observations Meteorologiques faites a Avignon depuis 1802 jusqu'en 1812 inclusivement; Suivies de la hauteur de quelques points remarquables au-dessus du niveau de la mer
Observations meteorologiques faites A l'Observatoire de Paris
Observations Meteorologiques, faites a Sitka, sur la Cote N. O. de l'Amerique (Latitude 57o3' Longitude 222o15' a l'Est de Paris)
Observations of Comets from BC 611 to AD 1640. Extracted from the Chinese annals
Observations of Donati's Comet, 1858; Made at Markree Observatory, Ireland
"Observations of Donati's Comet, made at the Royal Observatory, Cape of Good Hope, between October 11th, 1858 and March 4th, 1859"
"Observations of Halley's Comet"
"Observations of Halley's Comet, made at the Royal Observatory, Cape of Good Hope, in the Years 1835 and 1836"
"Observations of Nebulae and Clusters of Stars made with the Six-foot and Three-foot Reflectors at Birr Castle, from the year 1848 up to the year 1878"
"Observations of some of the Nebulae"
Observations of the apparent distances and positions of 458 double and triple stars made in the years 1823, 1824 and 1825
Observations of the apparent distances and positions of 380 double and triple stars made in the years 1821, 1822 and 1823 [&] Observations of the apparent distances and positions of 458 double and triple stars made in the years 1823, 1824 and 1825
Observations of the Aurora Borealis from September 1834 to September 1839
"Observations of the Nebula of Orion, made at Valletta, with the Twenty-foot Equatorial"
"Observations of the Nebula of Orion, made at Valletta, with a Twenty-foot Equatoreal"
"Observations of the New Star in Gemini Made at the Radcliffe Observatory, Oxford"
Observations of the Tides. Communicated to the Royal Society by the Admiralty and printed by Order of the President and Council
Observations of twenty-three variable stars
Observations on a Series of Electrical Experiments
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