APPENDIX. 
533 
XIV. 
U. S. Ship Vincennes, 
Singapore Roads, Feb. 26th, 1842. 
Sir,— 
After leaving the Straits of Sunda, you will be governed by the 
following instructions, viz.: 
You will proceed to the westward across the Indian Ocean, passing 
five or six hundred miles to the southward of the island of Panaw, 
double the Cape of Good Hope, and visit the island of St. Helena, where 
you will lose no time in filling up with water, and proceed from thence 
to Rio de Janeiro, at which place you will make experiments for dip 
and intensity, on the island of Enxados, and take on board a sufficient 
quantity of bread for the passage to New York. 
When you arrive at New r York, you will cause all journals, memo¬ 
randums, remarks, writings, drawings, sketches and paintings, as well 
as all specimens of any kind, to be delivered to you; which, together 
with your own journal, you will have carefully boxed up and sealed in 
the presence of two commissioned officers; marked Exploring Expe¬ 
dition, and hold them subject to my orders. 
On your arrival at New York, you will find orders from me, or, if I 
should not have arrived, you will report by letter to the Honourable 
Secretary of the Navy, sending him a copy of this order. 
You are supplied with Six’s self-registering thermometer, with which 
you will obtain the temperature daily, at the depth of one hundred 
fathoms, when your morning sights are taken; at which time you will 
note in tables the latitude and longitude, the current (velocity and 
direction), masthead temperature, deck temperature, and temperature 
at the depth of one hundred fathoms, and at the surface. 
You will examine all shoals, banks, and positions marked “ doubt¬ 
ful,” that may lay in or near your track. 
At St. Helena, you will leave letters informing me of your proceed¬ 
ings, and you will lose no time in making your way to your final port 
of destination, as it is all-important you should reach the United States 
at as early a day as possible. 
On dropping your anchor in New York Bay, you will pay to each 
of your crew ten dollars, and suffer them to leave the vessel at once, 
as their time will have expired; and retain only as many as will volun¬ 
teer to take charge of the brig. 
In the event of my arriving before you, orders will meet you for the 
disposition of the journals, &c., of which you will take particular care, 
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