Images

Stereoscopy, stereoscopic imaging or 3-D (three-dimensional) imaging is any technique capable of producing three-dimensional visual information or creating the illusion of depth in an image. This apparatus was manufactured by Oculus.
Object ID: USGS-000192

This device records atmospheric pressure and uses twelve stacked aneroid barometer cells in its mechanism to move a pen upon paper, both of which are attached to a drum moved by clockwork. The apparatus is enclosed in a wooden cabinet with set-in glass viewing pane.
Object ID: USGS-000242

Object has its original Case. A graduated circular protractor with pivoting arm, it is used for measuring or marking off angles. This instrument was manufactured by Bowen & Company and was first used by the U.S. Army Corp of Engineers before being transferred to the U.S. Geological Survey.
Object ID: USGS-000252

Original Box & Booklets. Marketed as being made of Ivorite, this slide rule was manufactured by Keuffel & Esser Company, New York & New Jersey in the 1960s.

An early optoelectronic instrument manufactured by Ernst Leitz G.m.b.H., Wetzlar, Germany, serial #25748. The instrument consists of a weighted stand with optics device with attached power cord, transformer box ("Regel-Transformator / Nur für Wechselstrom / 120/220 Volt - 50 HZ / Typ REDYX Nr. 25748 / Leitz-Speziallampe 6V. 5Amp. / max.

Manufactured by Mine Safety Appliances Company sometime after 1914, the wood cabinet-like chest includes an analytical balance, pans and flasks.
Object ID: USGS-000259

Manufactured by the Bausch and Lomb Optical Company. Stereographs and stereo compilation glasses are used in the photogrammetry, which is the process of making maps or scale drawings from photographs, especially aerial photographs.
Object ID: USGS-000276

This rawhide pannier was made for Dr. J. D. Love in 1945. It consists of rawhide stretched over wooden frames. For transportation, this type of pannier was made to hang on animals with wooden pack saddles.
Object ID: USGS-000027

This oven was made for cooking on top of a stove. There is no heating source, but the bottom is open and the oven sits on a heated stove for warmth. There are racks inside and a small temperature gauge on the oven door. The oven was used by scientists at their campsites.
Object ID: USGS-000111

Manufactured by Keuffel & Esser, New York & New Jersey. In this type of alidade, as opposed to the high standard, the telescope mounted close to the straightedge, producing a more compact instrument. A right-angle prism is attached to the eyepiece and permits viewing by looking down.

A high standard alidade; this type of alidade permits direct viewing through the telescope. The level is mounted below the inverting telescope and the base (blade) is solid brass with circular voids. Manufactured by Keuffel & Esser, New York & New Jersey.
Object ID: USGS-000165

Plane tables are also known as drawing boards. The round leg tripod is made from hardwood, with a bronze head, steel tips and plum bob.
Object ID: USGS-000210

Used in field work by Thomas B. Nolan, who served as the seventh Director of the U.S. Geological Survey (1956-1965).
Object ID: USGS-000214

Director's Display in Denver Colorado. It displays surveying equipment used by USGS field scientists. Some of the instruments included are engineer's levels, transits, hand-held transits, altimeters and microscopes.
Object ID: USGS-DenverDisplay(1of2)

Pocket Model used to measure altitude. Accurate to 15,000 ft. Made in Aug. 1968 by Revue Thommen AG, Switzerland.
Object ID: USGS-000646

Manufactured by Q-O-S Corporation, New York for the U.S. Army Corp of Engineers. Although originally designed for military reconnaissance work, this type of instrument was used for map reading of aerial photographs up to 8".
Object ID: USGS-000235

A pocket instrument used in surveying which consists of a fixed sighting tube, a movable spirit level connected to a pointing arm and an arced scale graduated 0 to 90º in both directions. When correctly used, the Abney Level is an accurate surveying tool used to measure degrees, percent of grade and topographic elevation. Manufactured by E.R.

This is a set of food preparation tools used in the field. Included in the mess kit are cups, pans, interchangeable lids and handles, a strainer, a coffeepot and a hot water pot. This kit was used by field scientists in the west.
Object ID: USGS-000135-136, 138-144, 146 & 148-150

This is Arnold Hague's saddle. The saddle is likely about 120 years old and in the western style with a sheepskin liner. Arnold Hague used this saddle on his expeditions in the west.
Object ID: USGS-000015

This desk, used in the field, was originally made for the US Army. The drawers all pull into the desk and the writing surface of the desk then folds up for transport. Often, scientists took advantage of surplus items for their field work.
Object ID: USGS-000017

This is one of many heavy, canvas and leather panniers. They were used by Arnold Hague in the late 1800s and are no longer made or used. Many are imprinted with "US Geol. Sur."
Object ID: USGS-000037