Description | Commencing: 'Passing over all those experiments during the months of June, July and August some of the anomolies in which were at last found to proceed from the imperfect mode of placing the needle on the agates as provided for by the instrument maker...'. Giving an account of experiments made 16 September-11 October 1841, with abstracts of the observations made ['Résumé of the previous observations'].
Signed [p.7]: 'Jno. Caldecott Trivandrum Observatory Octr. 14th: 1841'. Inscribed [p.8]: 'Trevandrum Observatory Dip Observations Septr./Octr. 1841-'. |