APPENDIX. 423 
entering by the west through Brecknock Passage, Cockburn's Chan- 
nel, and Magdalene Sound. 
2d. Captain King's chart of the Straits of Magellan may be de- 
pended on for all requisite information ; his book of directions will 
also give you a full knowledge of the tides, currents, anchorages, &c. 
I would recommend its attentive examination. 
3d. You will keep full and complete journals of all your observa- 
tions as heretofore, in regard to the soundings, temperature, &c. 
4th. You will on anchoring set up tide-staves, and enter all ob- 
servations agreeably to our formula; and you will continue your 
meteorological journal hourly. 
5th. Should you experience any gales or storms, you will note 
their progress, from the commencement to the end, with their ap- 
pearance, &c. ; and any occurrence of interest will be immediately 
noted in your journal. 
6th. You will also explore and survey Useless Bay in the Straits 
of Magellan, and connect your observations, &c, with Captain King's 
chart; and you will stop at Port Famine, on your way there and 
back, and such other safe harbours as may appear to offer advantages 
for scientific observations and collections ; and you will return to this 
anchorage by the Straits of Le Maire, on or before the 15th of April 
next, if possible, where you will find me or orders on the summit of 
Burnt Island ; in the absence of which you will proceed direct to 
Valparaiso. 
7th. The north side of the Straits of Magellan affords at all times 
good anchorage ; you will keep it close on board. 
8th. The period of your absence must not exceed fifty days, if it 
can be avoided ; during which time I have no doubt all on board will 
exert themselves in making the best possible use of the short space of 
time allowed. 
9th. You will avoid being blown off to the eastward, as in such 
event the Expedition will suffer. 
10th. Should any accident happen to the Relief, you will despatch 
without delay a boat to this anchorage, under charge of an officer, 
through the route you are to enter, pursuing thence Whale-Boat 
and Darwin Sounds, through the Beagle Channel, as far as the 
passage of Host and Navarin Islands, thence into Nassau Bay to 
Orange Harbour. 
11th. Mr. Percival has been ordered to the Relief as pilot; he has 
been in the Straits of Magellan, and will afford you all the aid in his 
power. 
