APPENDIX. 
409 
10th. You will carefully preserve all the soundings, brought up by 
your deep-sea lead, in papers, with the positions where they were had. 
11th. On your route you will make repeated trials of the current, 
and while on soundings you will anchor your boat with the deep-sea 
lead, making use of the current-log. Your acting-master has been 
shown the one in use on board this ship. 
12th. You will expose two thermometers, one having its bulb 
covered with black wool, daily to the influence of the sun, and note 
the difference in your journal ; also that which is shown in the shade; 
and you will continue al] observations as heretofore. 
13th. It is believed that the Relief will not require any repairs; 
should, however, any be necessary, you will complete them at once. 
14th. You will avoid being blown off to the eastward by all the 
means in your power ; running with the coast, and anchoring during 
the continuance of westerly gales under the land, is recommended. I 
am not aware that you have any dangers to fear, except kelp, which 
you may run boldly towards, but avoid entering. 
15th. You will afford Mr. Rich, the Botanist, every facility in 
collecting specimens, &c, and, if possible, seek out places where a 
quantity of wild celery-grass may be collected for the crews on our 
arrival. 
16th. You will issue to such of the crew as may require the warm 
articles of clothing supplied for the Exploring Expedition, charging 
them at the usual slop prices, which will be remitted at the end of 
the cruise, on the good behaviour of the men. 
17th. You will give particular attention to the health and comfort 
of the officers and crew. 
Wishing you a safe and x speedy passage to your port of destination, 
I am, &c, 
Charles Wilkes, 
Commanding Exploring Expedition. 
Lieut. Com. A. K. Long, 
United States Ship Relief. 
United States Ship Vincennes, 
Off Rio de Janeiro, Jan. 5th, 1839. 
Sir, 
In the event of our separating, which, however, you will avoid by 
all possible exertions, you will proceed with all despatch to Orange 
vol. i. 103 
