Narrative of the surveying voyages of his majesty's ships Adventure and Beagle (vol.2- Appendix): between the years 1826 and 1836 : describing their examination of the southern shores of South America, and the Beagles's circumnavigation of the globe

APPENDIX. 325 nion upon the degree of value that may be attached to the following remarks and results. •Remarks on the Beagle's Chronometrical Measurements between 18.31 and 1836 ; with their principal Results. On the 14th of Nov., 1831, the following chronometers were embarked on board the Beagle, and placed in their permanent situ- ations : — Letters. Descrip- tion. Days. Maker. No. Owner. Remarks. A Box 8 Molyneux . 1415 Fitz-Roy Good. tB Do. 1 Gardner 24 Government.. Bad. C Do. 1 Molyneux . 1081 Molyneux Rather good. D Do. 8 Murray 542 Murray Do. E Do. 1 Eiflfe E Government . Do. F Do. 2 Arnold & Dent 661 Arnold & Dent Do. G Do. 1 Do. 6.33 Fitz-Roy Do. H Pocket 1 Do. 261 Do. Do. K Do. 1 Parkinson &\ Frodsham J 1042 Government . Good. L Box 2 Arnold 634 Fitz-Roy Rather good. M Do. 1 Frodsham 2 Government • Do. N Do. 2 Molyneux . 1175 Fitz-Roy Do. O Do. 1 Earnshaw 705 Government . Do. tP Do. 1 Frodsham 1 Do. Bad. R Do. 1 Murray . 584 Murray Very good. S Do. 1 Arnold 465 Government • • Rather good. T Pocket 1 Molyneux 1326 Fitz-Roy Indifferent. V Do. 1 Pennington .. 426 L"*. Ashburnham Rather good. w Box 2 Molyneux . 971 Government . Good. X Do. 1 Earnshaw 509 Do. Rather good. Y Pocket 1 Morrice 6144 Do. Do. Z Box 8 French 4214 Do. Good. These chronometers being embarked, and permanently fixed, more than a month previous to the Beagle's departure from England, sufficient time elapsed to ascertain their rates satisfactorily. Suspended in gimbals, as usual, within a wooden box, each was placed in sawdust, divided and retained by partitions, upon one of two wide shelves. The sawdust was about three inches thick below, as well as at the sides of each box, and formed a bed for it which * The 12 hour mark of each chronometer was invariably kept in one direction with respect to the ship. + Never used after Feb. 1835. \ Never used after Sept. 1835.