| RefNo | EC/1875/24 |
| Previous numbers | Cert X, 267 |
| Level | Item |
| Title | Hennessey, John Baboneau Nickterlien: certificate of election to the Royal Society |
| Citation | Has served 31 years in the Great Trigl Survey of India, during 20 of which, as Head of the Computing, Printing , Drawing, and Photo-Zincographic Office. Principal Compiler of Vol I Operations G T Survey of India 1870, on Standards of Measures and Base Lines. - Assisted at the Measurement of Souakoda, Church, and Vizagapatam Base lines. Superintended the measurement of Bangalore Base line. - Reduced by method of least Squares, the triangulation of the NW Quadrilateral of India, defined by the Seronj, Dehr, Church, & Kurachi Base lines, covering an area of about 260,000 square miles and involving the simultaneous determination of 1500 unknown quantities. Determined experimentally the Expansions of the Steel & Iron 10 feet Standards of the Indian Survey and reduced the results; besides taking a leading share in numerous comparisons of Standards. Author of papers read before the Royal Society, on Meteorology, Terrestrial & Solar Physics, and on his Observations of the Transit of Venus 1874. Distinguished as a Mathematician Astronomer & Physicist. Eminent as a Geodesist. |
| Proposers | From General Knowledge. H E Roscoe; Wm Lassell.
From Personal Knowledge. Andrew Scott Waugh; A Strange; Edward Sabine; A R Clarke; B Stewart; J Challis; John Tyndall; Thomas Thomson |
| Extent | 1 sheet |
| AccessStatus | Open |
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Fellows associated with this archive
| Code | PersonName | Dates |
| NA6447 | Hennessey; John Baboneau Nickterlien (1829 - 1910) | 1829 - 1910 |