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		<title>USGS Multimedia Gallery Collection for: USGS Museum</title>

		<link>http://gallery.usgs.gov/</link>
		<language>en-us</language>
		<managingEditor>OC_Web@usgs.gov (Office of Communications Web Group)</managingEditor>
		
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			<title>USGS</title>
			<link>http://gallery.usgs.gov/</link>
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			<item>
				<title><![CDATA[Kemmerer and Releated Items ]]></title>
				<link>http://gallery.usgs.gov/photos/07_27_2009_r84Yqd0POk_07_27_2009_0</link>
				<media:description><![CDATA[Water sampling kit including a kemmerer. The Kemmerer, also known as a water bottle is used by lowering it to the desired depth of water to be tested. A messenger (torpedo-like object with slit on the side) is attached to the rope holding kemmerer and slides down to it. It hits the kemmerer and closes it. The kemmerer is then pulled up and tests can be done to find out very useful information about the water at that depth (amount of oxygen dissolved in water, clarity, etc.). Used by Luna Leopold
Object ID: USGS-000764]]></media:description>
				<media:thumbnail url="http://gallery.usgs.gov/images/07_27_2009/r84Yqd0POk_07_27_2009/thumbs/Kemmerer_RelatedItems01.JPG"/>
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			</item>                  

			<item>
				<title><![CDATA[Kemmerer and Releated Items ]]></title>
				<link>http://gallery.usgs.gov/photos/07_27_2009_r84Yqd0POk_07_27_2009_1</link>
				<media:description><![CDATA[Water sampling kit including a kemmerer. The Kemmerer, also known as a water bottle is used by lowering it to the desired depth of water to be tested. A messenger (torpedo-like object with slit on the side) is attached to the rope holding kemmerer and slides down to it. It hits the kemmerer and closes it. The kemmerer is then pulled up and tests can be done to find out very useful information about the water at that depth (amount of oxygen dissolved in water, clarity, etc.). Used by Luna Leopold
Object ID: USGS-000764]]></media:description>
				<media:thumbnail url="http://gallery.usgs.gov/images/07_27_2009/r84Yqd0POk_07_27_2009/thumbs/Kemmerer_RelatedItems04.JPG"/>
				<media:content type="image/jpeg" url="http://gallery.usgs.gov/images/07_27_2009/r84Yqd0POk_07_27_2009/large/Kemmerer_RelatedItems04.JPG"/>
			</item>                  

			<item>
				<title><![CDATA[Kemmerer and Releated Items (3 of 4)]]></title>
				<link>http://gallery.usgs.gov/photos/07_27_2009_r84Yqd0POk_07_27_2009_2</link>
				<media:description><![CDATA[Water sampling kit including a kemmerer. The Kemmerer, also known as a water bottle is used by lowering it to the desired depth of water to be tested. A messenger (torpedo-like object with slit on the side) is attached to the rope holding kemmerer and slides down to it. It hits the kemmerer and closes it. The kemmerer is then pulled up and tests can be done to find out very useful information about the water at that depth (amount of oxygen dissolved in water, clarity, etc.). Used by Luna Leopold
Object ID: USGS-000764]]></media:description>
				<media:thumbnail url="http://gallery.usgs.gov/images/07_27_2009/r84Yqd0POk_07_27_2009/thumbs/Kemmerer_RelatedItems11.JPG"/>
				<media:content type="image/jpeg" url="http://gallery.usgs.gov/images/07_27_2009/r84Yqd0POk_07_27_2009/large/Kemmerer_RelatedItems11.JPG"/>
			</item>                  

			<item>
				<title><![CDATA[Kemmerer and Releated Items (4 of 4)]]></title>
				<link>http://gallery.usgs.gov/photos/07_27_2009_r84Yqd0POk_07_27_2009_3</link>
				<media:description><![CDATA[Water sampling kit including a kemmerer. The Kemmerer, also known as a water bottle is used by lowering it to the desired depth of water to be tested. A messenger (torpedo-like object with slit on the side) is attached to the rope holding kemmerer and slides down to it. It hits the kemmerer and closes it. The kemmerer is then pulled up and tests can be done to find out very useful information about the water at that depth (amount of oxygen dissolved in water, clarity, etc.). Used by Luna Leopold
Object ID: USGS-000764]]></media:description>
				<media:thumbnail url="http://gallery.usgs.gov/images/07_27_2009/r84Yqd0POk_07_27_2009/thumbs/Kemmerer_RelatedItems12.JPG"/>
				<media:content type="image/jpeg" url="http://gallery.usgs.gov/images/07_27_2009/r84Yqd0POk_07_27_2009/large/Kemmerer_RelatedItems12.JPG"/>
			</item>                  

			<item>
				<title><![CDATA[High Standard Alidade]]></title>
				<link>http://gallery.usgs.gov/photos/07_22_2009_j51Qi76Hgb_07_22_2009_0</link>
				<media:description><![CDATA[This alidade consists of straightedges with a rigidly-mounted telescope that can be rotated through the vertical angle ±30. The telescope is set on a high standard or post (4 inches in height) to raise it above the table. The telescope for the high standard is 16 power, inverting type with internal focusing. It is made of brass and was manufactured by Keuffel & Esser Company, New York & New Jersey.
Object ID: USGS-000158]]></media:description>
				<media:thumbnail url="http://gallery.usgs.gov/images/07_22_2009/j51Qi76Hgb_07_22_2009/thumbs/000158-High_Standard_Alidade.jpg"/>
				<media:content type="image/jpeg" url="http://gallery.usgs.gov/images/07_22_2009/j51Qi76Hgb_07_22_2009/large/000158-High_Standard_Alidade.jpg"/>
			</item>                  

			<item>
				<title><![CDATA[Gurley Micrometer Alidade]]></title>
				<link>http://gallery.usgs.gov/photos/07_22_2009_j51Qi76Hgb_07_22_2009_1</link>
				<media:description><![CDATA[Manufactured by W. & L.E. Gurley, Troy, New York. The micrometer attachment us a modification of the tangent screw attached to the horizontal axis of the telescope and used for measuring vertical angles in terms of their tangents. Relatively few of these types of alidades are listed in early 1900s property records of instruments used by the U.S. Geological Survey.
Object ID: USGS-000159]]></media:description>
				<media:thumbnail url="http://gallery.usgs.gov/images/07_22_2009/j51Qi76Hgb_07_22_2009/thumbs/000159-Gurley_Micrometer_Alidade.jpg"/>
				<media:content type="image/jpeg" url="http://gallery.usgs.gov/images/07_22_2009/j51Qi76Hgb_07_22_2009/large/000159-Gurley_Micrometer_Alidade.jpg"/>
			</item>                  

			<item>
				<title><![CDATA[Pendulum Self-leveling Alidade]]></title>
				<link>http://gallery.usgs.gov/photos/07_22_2009_j51Qi76Hgb_07_22_2009_2</link>
				<media:description><![CDATA[This is a telescopic alidade in which a pendulum device, or compensator replaces the conventional bubble for establishing a horizontal reference line from which vertical angles may be measured. Alidades were the primary mapping instrument in the U.S. from about 1865 to the 1980s, when they were replaced by the total station. This alidade was manufactured by Keuffel & Esser Company, New York & New Jersey.
Object ID: USGS-000160]]></media:description>
				<media:thumbnail url="http://gallery.usgs.gov/images/07_22_2009/j51Qi76Hgb_07_22_2009/thumbs/000160-Pendulum_Self-leveling_Alidade.jpg"/>
				<media:content type="image/jpeg" url="http://gallery.usgs.gov/images/07_22_2009/j51Qi76Hgb_07_22_2009/large/000160-Pendulum_Self-leveling_Alidade.jpg"/>
			</item>                  

			<item>
				<title><![CDATA[Explorer's Alidade]]></title>
				<link>http://gallery.usgs.gov/photos/07_22_2009_j51Qi76Hgb_07_22_2009_3</link>
				<media:description><![CDATA[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 cylindrical bubble and magnetic compass needle are attached to the base; these are used to level and orient the plane table to its proper position.
Object ID: USGS-000161]]></media:description>
				<media:thumbnail url="http://gallery.usgs.gov/images/07_22_2009/j51Qi76Hgb_07_22_2009/thumbs/000161-Explorers_Alidade.jpg"/>
				<media:content type="image/jpeg" url="http://gallery.usgs.gov/images/07_22_2009/j51Qi76Hgb_07_22_2009/large/000161-Explorers_Alidade.jpg"/>
			</item>                  

			<item>
				<title><![CDATA[Telescopic Alidade]]></title>
				<link>http://gallery.usgs.gov/photos/07_22_2009_j51Qi76Hgb_07_22_2009_4</link>
				<media:description><![CDATA[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]]></media:description>
				<media:thumbnail url="http://gallery.usgs.gov/images/07_22_2009/j51Qi76Hgb_07_22_2009/thumbs/000165-Telescopic_Alidade.jpg"/>
				<media:content type="image/jpeg" url="http://gallery.usgs.gov/images/07_22_2009/j51Qi76Hgb_07_22_2009/large/000165-Telescopic_Alidade.jpg"/>
			</item>                  

			<item>
				<title><![CDATA[Drafting Set]]></title>
				<link>http://gallery.usgs.gov/photos/07_22_2009_j51Qi76Hgb_07_22_2009_5</link>
				<media:description><![CDATA[Also known as a drawing set, the instruments were used in cartographic work. The instruments include ruling pens and ring head dividers. This set was manufactured by Eugene Dietzgen & Company, Chicago and New York. The set was used by the U.S. Geological Survey Topographic Branch in the early decades of the 20th Century.
Object ID: USGS-000173]]></media:description>
				<media:thumbnail url="http://gallery.usgs.gov/images/07_22_2009/j51Qi76Hgb_07_22_2009/thumbs/000173-Drafting_Set.jpg"/>
				<media:content type="image/jpeg" url="http://gallery.usgs.gov/images/07_22_2009/j51Qi76Hgb_07_22_2009/large/000173-Drafting_Set.jpg"/>
			</item>                  

			<item>
				<title><![CDATA[Rigid Graver with Loupe]]></title>
				<link>http://gallery.usgs.gov/photos/07_22_2009_j51Qi76Hgb_07_22_2009_6</link>
				<media:description><![CDATA[Gravers were used in cartographic work by the U.S. Geological Survey Topographic Branch. Graver types include rigid, swivel, building and fine line.
Object ID: USGS-000178]]></media:description>
				<media:thumbnail url="http://gallery.usgs.gov/images/07_22_2009/j51Qi76Hgb_07_22_2009/thumbs/000178-Swivel_Graver_with_Loup.jpg"/>
				<media:content type="image/jpeg" url="http://gallery.usgs.gov/images/07_22_2009/j51Qi76Hgb_07_22_2009/large/000178-Swivel_Graver_with_Loup.jpg"/>
			</item>                  

			<item>
				<title><![CDATA[Cast Bronze Benchmark]]></title>
				<link>http://gallery.usgs.gov/photos/07_22_2009_j51Qi76Hgb_07_22_2009_7</link>
				<media:description><![CDATA[Benchmarks can be divided into two general groups: the "vertical control points" are points that mark a very precise elevation above the standard datum plane (usually referred to as elevation above sea level) and the "horizontal control points" are points with precisely established latitude and longitude. The National Geodetic Survey, not the U.S. Geological Survey, is the Maintainer of federal Vertical Control Marks. This specimen is a Reference Benchmark and not a geodetic control mark. In actual use, this marker would have been used to keep the location of a triangulation station from being lost. Its arrow would be set to the location of the triangulation station; the station's description would have accurate azimuth and horizontal (not slope) distance to each of its reference marks so that it can be re-set from them if necessary.
Object ID: USGS-000181]]></media:description>
				<media:thumbnail url="http://gallery.usgs.gov/images/07_22_2009/j51Qi76Hgb_07_22_2009/thumbs/000181-Benchmark.jpg"/>
				<media:content type="image/jpeg" url="http://gallery.usgs.gov/images/07_22_2009/j51Qi76Hgb_07_22_2009/large/000181-Benchmark.jpg"/>
			</item>                  

			<item>
				<title><![CDATA[Stereoscope used in Photogrammetry]]></title>
				<link>http://gallery.usgs.gov/photos/07_22_2009_j51Qi76Hgb_07_22_2009_8</link>
				<media:description><![CDATA[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]]></media:description>
				<media:thumbnail url="http://gallery.usgs.gov/images/07_22_2009/j51Qi76Hgb_07_22_2009/thumbs/000192-Sterogram_Stereoscope.jpg"/>
				<media:content type="image/jpeg" url="http://gallery.usgs.gov/images/07_22_2009/j51Qi76Hgb_07_22_2009/large/000192-Sterogram_Stereoscope.jpg"/>
			</item>                  

			<item>
				<title><![CDATA[Argus Film Projector]]></title>
				<link>http://gallery.usgs.gov/photos/07_22_2009_j51Qi76Hgb_07_22_2009_9</link>
				<media:description><![CDATA[Manufactured by Argus Inc, Ann Arbor, Michigan. This projector was used for 35mm slides.
Object ID: USGS-000194]]></media:description>
				<media:thumbnail url="http://gallery.usgs.gov/images/07_22_2009/j51Qi76Hgb_07_22_2009/thumbs/000194-Argus_Film_Projector.jpg"/>
				<media:content type="image/jpeg" url="http://gallery.usgs.gov/images/07_22_2009/j51Qi76Hgb_07_22_2009/large/000194-Argus_Film_Projector.jpg"/>
			</item>                  

			<item>
				<title><![CDATA[T21 Theodolite]]></title>
				<link>http://gallery.usgs.gov/photos/07_22_2009_j51Qi76Hgb_07_22_2009_10</link>
				<media:description><![CDATA[Manufactured by WILD Heerbrugg, Switzerland. This instrument was made in the late 1950s- early 1960s and was in service until the late 1970s. It includes its original air-tight and water-tight steel case, as well as its shipping case.
Object ID: USGS-000198]]></media:description>
				<media:thumbnail url="http://gallery.usgs.gov/images/07_22_2009/j51Qi76Hgb_07_22_2009/thumbs/000198_Theodolite.jpg"/>
				<media:content type="image/jpeg" url="http://gallery.usgs.gov/images/07_22_2009/j51Qi76Hgb_07_22_2009/large/000198_Theodolite.jpg"/>
			</item>                  

			<item>
				<title><![CDATA[Tagged Marker Stake]]></title>
				<link>http://gallery.usgs.gov/photos/07_22_2009_j51Qi76Hgb_07_22_2009_11</link>
				<media:description><![CDATA[Used in U.S. Geological Survey field work.
Object ID: USGS-000209]]></media:description>
				<media:thumbnail url="http://gallery.usgs.gov/images/07_22_2009/j51Qi76Hgb_07_22_2009/thumbs/000209-Tagged_Marker_Stake.jpg"/>
				<media:content type="image/jpeg" url="http://gallery.usgs.gov/images/07_22_2009/j51Qi76Hgb_07_22_2009/large/000209-Tagged_Marker_Stake.jpg"/>
			</item>                  

			<item>
				<title><![CDATA[Plane Table with Tripod]]></title>
				<link>http://gallery.usgs.gov/photos/07_22_2009_j51Qi76Hgb_07_22_2009_12</link>
				<media:description><![CDATA[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]]></media:description>
				<media:thumbnail url="http://gallery.usgs.gov/images/07_22_2009/j51Qi76Hgb_07_22_2009/thumbs/000210-Drawing_Board_with_Tripod.jpg"/>
				<media:content type="image/jpeg" url="http://gallery.usgs.gov/images/07_22_2009/j51Qi76Hgb_07_22_2009/large/000210-Drawing_Board_with_Tripod.jpg"/>
			</item>                  

			<item>
				<title><![CDATA[Split-leg Tripod (Plane Table Base)]]></title>
				<link>http://gallery.usgs.gov/photos/07_22_2009_j51Qi76Hgb_07_22_2009_13</link>
				<media:description><![CDATA[Constructed of maple with cast bronze Johnson Head, leather strap, cast steel shoes and attached hooks (probably not original). This tripod is about 50-1/2" in height (closed) and is nearly identical to another tripod in the USGS Collection (USGS-492).]]></media:description>
				<media:thumbnail url="http://gallery.usgs.gov/images/07_22_2009/j51Qi76Hgb_07_22_2009/thumbs/000211-Split-leg_Tripod.jpg"/>
				<media:content type="image/jpeg" url="http://gallery.usgs.gov/images/07_22_2009/j51Qi76Hgb_07_22_2009/large/000211-Split-leg_Tripod.jpg"/>
			</item>                  

			<item>
				<title><![CDATA[Leather Boots]]></title>
				<link>http://gallery.usgs.gov/photos/07_22_2009_j51Qi76Hgb_07_22_2009_14</link>
				<media:description><![CDATA[The soles of made of heavy-duty rubber with metal studs.
Object ID: USGS-000212]]></media:description>
				<media:thumbnail url="http://gallery.usgs.gov/images/07_22_2009/j51Qi76Hgb_07_22_2009/thumbs/000212-Leather_Work_Boots.jpg"/>
				<media:content type="image/jpeg" url="http://gallery.usgs.gov/images/07_22_2009/j51Qi76Hgb_07_22_2009/large/000212-Leather_Work_Boots.jpg"/>
			</item>                  

			<item>
				<title><![CDATA[Canvas Plane Table Case]]></title>
				<link>http://gallery.usgs.gov/photos/07_22_2009_j51Qi76Hgb_07_22_2009_15</link>
				<media:description><![CDATA[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]]></media:description>
				<media:thumbnail url="http://gallery.usgs.gov/images/07_22_2009/j51Qi76Hgb_07_22_2009/thumbs/000214-Plane_Table_Case.jpg"/>
				<media:content type="image/jpeg" url="http://gallery.usgs.gov/images/07_22_2009/j51Qi76Hgb_07_22_2009/large/000214-Plane_Table_Case.jpg"/>
			</item>                  

			<item>
				<title><![CDATA[Bird-banding Kit]]></title>
				<link>http://gallery.usgs.gov/photos/07_22_2009_j51Qi76Hgb_07_22_2009_16</link>
				<media:description><![CDATA[The kit contains over 600 pieces and was used at the Bird Banding Laboratory at the Patuxent Wildlife Research Center, Maryland.
Object ID: USGS-000219]]></media:description>
				<media:thumbnail url="http://gallery.usgs.gov/images/07_22_2009/j51Qi76Hgb_07_22_2009/thumbs/000219-Bird_Banding_Kit.jpg"/>
				<media:content type="image/jpeg" url="http://gallery.usgs.gov/images/07_22_2009/j51Qi76Hgb_07_22_2009/large/000219-Bird_Banding_Kit.jpg"/>
			</item>                  

			<item>
				<title><![CDATA[Quintant Sextant or Lattice Sextant]]></title>
				<link>http://gallery.usgs.gov/photos/07_22_2009_j51Qi76Hgb_07_22_2009_17</link>
				<media:description><![CDATA[This instrument was manufactured by Spencer, Browning & Rust, London. A sextant is used for measuring the altitude of the sun or another celestial body; such measurements can then be used to determine the observer's geographical position or for other navigational, surveying, or astronomical applications. Dating from the 1820s-1850s, this instrument is among the earliest objects in the U.S. Geological Survey museum collection.
Object ID: USGS-000220]]></media:description>
				<media:thumbnail url="http://gallery.usgs.gov/images/07_22_2009/j51Qi76Hgb_07_22_2009/thumbs/000220-Sextant.jpg"/>
				<media:content type="image/jpeg" url="http://gallery.usgs.gov/images/07_22_2009/j51Qi76Hgb_07_22_2009/large/000220-Sextant.jpg"/>
			</item>                  

			<item>
				<title><![CDATA[Copper Crucible Oven]]></title>
				<link>http://gallery.usgs.gov/photos/07_22_2009_j51Qi76Hgb_07_22_2009_18</link>
				<media:description><![CDATA[Manufactured by E.H. Sargent and Company. The set includes the oven, ceramic crucibles, a mortar & pestle, lead tape and stirrers.
Object ID: USGS-000233]]></media:description>
				<media:thumbnail url="http://gallery.usgs.gov/images/07_22_2009/j51Qi76Hgb_07_22_2009/thumbs/000233-Copper_Crucible.jpg"/>
				<media:content type="image/jpeg" url="http://gallery.usgs.gov/images/07_22_2009/j51Qi76Hgb_07_22_2009/large/000233-Copper_Crucible.jpg"/>
			</item>                  

			<item>
				<title><![CDATA[Stereoscope]]></title>
				<link>http://gallery.usgs.gov/photos/07_22_2009_j51Qi76Hgb_07_22_2009_19</link>
				<media:description><![CDATA[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]]></media:description>
				<media:thumbnail url="http://gallery.usgs.gov/images/07_22_2009/j51Qi76Hgb_07_22_2009/thumbs/000235-Stereoscope.jpg"/>
				<media:content type="image/jpeg" url="http://gallery.usgs.gov/images/07_22_2009/j51Qi76Hgb_07_22_2009/large/000235-Stereoscope.jpg"/>
			</item>                  

			<item>
				<title><![CDATA[Heavy Metal Separator Funnel]]></title>
				<link>http://gallery.usgs.gov/photos/07_22_2009_j51Qi76Hgb_07_22_2009_20</link>
				<media:description><![CDATA[This apparatus is known by various names: Separatory Funnel, Heavy Metal Separator, Sep Funnel and a few more. This is an example of antique lab equipment which can be found in the U.S. Geological Survey museum collection. 
Object ID: USGS-000239]]></media:description>
				<media:thumbnail url="http://gallery.usgs.gov/images/07_22_2009/j51Qi76Hgb_07_22_2009/thumbs/000239-Heavy_Metal_Separatory_Funnel.jpg"/>
				<media:content type="image/jpeg" url="http://gallery.usgs.gov/images/07_22_2009/j51Qi76Hgb_07_22_2009/large/000239-Heavy_Metal_Separatory_Funnel.jpg"/>
			</item>                  

		
                
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