nara/coll_xp

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nara/coll_xp

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Cores Collections · 15 Documents · 66 Series · 15

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Roosevelt: Botanical Specimens [2 of 2]

13 img

This file contains cards and booklets with specimens of flowers and plants collected and presented to Robert Peary.

#518279957

object

Sextant

4 img

This sextant includes four different lenses and its case. It was used to measure the angle between the sun and the horizon in order to determine the user's altitude.

#128214333

object

Telescope

2 img

#128214330

object

Theodolite

5 img

This instrument was used to measure angles on the horizontal and vertical planes.

#128214321

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Roosevelt: Botanical Specimens [2 of 2]

Sextant

Telescope

Theodolite