In preparation for the journey, Meriwether Lewis wrote a list of necessary items to be taken. Due to Lewis's spelling, some of the words may not look familiar to you; please sound them out phonetically to understand them. See http://media.nara.gov/media/images/19/29/19-2831a.gif for a look at the manuscript version of the Indian gifts.
Mathematical Instruments
1 Hadley's Quadrant
1 Mariner's Compas & 2 pole chain
1 Sett of plotting instruments
3 Thermometers
1 Cheap portable Microscope