78 Stoux City Academy of Science and Letters. 
“No. 3. Copy of invoice of articles received from 
the arsenal for the use of Capt. Lewis, May 18, 1803. 
“No. 4. Copy of list of charges taken out of Capt. 
Lewis’ account. 
“No. 5. Copy of medical supplies. 
“No. 6. Copy of bill of Rich. Wevill for making 
tents, &ce. 
“The foregoing comprises copies of all the papers 
which have been found pertaining to the expedition, ex- 
cept the bills for the purchases made by the Purveyor. 
The items on these bills, except medical supplies, are 
shown on the statement made by Mr. Whelen, copy of 
which is inclosed herewith, marked No. 2. 
“JOHN T. KNIGHT, 
“Major & Q. M. U.S. Army.” 
As of most interest among these copies I will first 
give the one marked in above endorsement as No. 1, of 
“Articles wanted by Capt. Lewis.” First in his list 
comes his wants in 
MATHEMATICAL INSTRUMENTS. 
Hadley’s Quadrant. 
Mariner’s Compass and two pole chain. 
Sett of Platting instruments. 
Thermometers. 
Cheap Portable Microscope. 
Pocket Compass. 
Brass Scale one foot in length. 
Magnetic Needles, in small straight silver or brass case opening 
on the side with hinges. 
Instrument for measuring made of tape with feet and inches 
marked on it, confined in a circular lethern box of sufficient thick- 
ness to admit the width of the tape which has one of its ends 
confined to an axis of metal passing through the center of the 
box, around which and within the box it is rapidly wound by 
means of a small crank on the outer side of the box which forms 
a part of the axis, the tape when necessary is drawn out with the 
same facility and ease with which it is wound up.* 
2 Hydrometers. 
1 Theodolite. 
1 
2 
OrMrPHwWHHE PE 
pare 
Sett Planespheres. 
Artificial Horisons. 
*Our common tape line 
