Presumably from observations made with the Boyden 20-cm coelostat. n/a. Extent: 1 photograph. Condition of original material: Stable. Author(s)/Creator(s): English. Scribe(s): Latin. Publisher(s): Left-to-Right. Editor(s): Unrestricted. Volume number: N/a. Original institution reference...
Presumably from observations made with the Boyden 20-cm coelostat. n/a. Extent: 1 photograph. Condition of original material: Stable. Author(s)/Creator(s): English. Scribe(s): Latin. Publisher(s): Left-to-Right. Editor(s): Unrestricted. Volume number: N/a. Original institution reference...
Presumably from observations made with the Boyden 20-cm coelostat. n/a. Extent: 1 photograph. Condition of original material: Stable. Author(s)/Creator(s): English. Scribe(s): Latin. Publisher(s): Left-to-Right. Editor(s): Unrestricted. Volume number: N/a. Original institution reference...
Presumably from observations made with the Boyden 20-cm coelostat. n/a. Extent: 1 photograph. Condition of original material: Stable. Author(s)/Creator(s): English. Scribe(s): Latin. Publisher(s): Left-to-Right. Editor(s): Unrestricted. Volume number: N/a. Original institution reference...
Seen from Lighthouse Road, looking south-west. A car is parked in the road ahead, and a person can be made out. Two tower-like structures are prominent. n/a. Extent: 1 glass plate. Size and dimensions of original material: Height 8.2cm, width 10.7cm, thickness 0.3cm. Condition of original ma...
Kommetjie, Western Cape, South Africa. Hout Bay and Table Mountain visible in the distant background. Lighthouse Road is visible near the centre of frame. n/a. Extent: 1 glass plate. Size and dimensions of original material: Height 8.2cm, width 10.7cm, thickness 0.3cm. Condition of original ...
A three-camera instrument on an equatorial fork mount, set up outdoors
Scope & Content:
An equatorial fork mount, carrying three cameras, on a temporary stand. On the left is a plank of wood, planted vertically, carrying a mechanical device consisting of a chain, weights, and gears. The chain runs to the mount and is presumably a drive mechanism. The cluster of cameras consists of ...
Group photo during 60-inch Rockefeller building construction, 1931 July 16
Scope & Content:
Construction site seen from roughly west-southwest. Three groups of people are posing in the cutting into the bedrock within which the 60-inch building will be constructed. 9 people are standing within the cutting, several holding tools. Behind them stands a vertical pipe held in place by suppor...
Printed label: "BI 75. The two-foot reflecting telescope. (166) / YERKES OBSERVATORY: 100 Representative Slides.". n/a. Extent: 1 lantern slide. Size and dimensions of original material: Height 8.2 cm, width 10.2 cm, thickness 0.2 cm. Condition of original material: Stable. Author(s)/Creato...