Harold Brown presenting a memorial album to Oscar Mayer, Jr., at the dedication of the 60-inch telescope, Palomar Observatory. The men are standing behind a podium inside the Oscar G. Mayer memorial building which houses the telescope. A small...
Theodore Dunham and two unidentified (his wife and mother?) women standing behind the Mount Wilson and Las Campanas Observatories sign, Pasadena. The sign reads:"The Observatories, Carnegie Institution of Washington". Dunham is wearing a suit; the...
A view behind the lines of the 18th New York Artillery Independent Battery in Fort Hudson, Louisiana. An area has been cleared out of the forest, leaving an open space which has guns lined across the width of the image, behind sandbags and round...
The correspondence of Allie Prescott consists of 48 handwritten letters addressed primarily to her mother and her sister, Emma. They are arranged chronologically from Jan. 11, 1870 to Apr. 4, 1891. Six undated letters have been placed at the end of...
Group photo of the attendees of the fourth conference of the International Union for Cooperation in Solar Research on Mount Wilson. There are approximately 75 unidentified people in the photograph, 2 of whom are women (front, center). The group is...
Group of seven (7) on Mount Wilson (Left to Right): Hugh Frank Newall; John Stanley Plaskett; Johannes Franz Hartmann; Edwin Brant Frost; William Wallace Campbell; Karl Schwarzschild; and Frank Schlesinger. Photograph is mounted in an album. The...
Shoveling snow at the Monastery, Mount Wilson Observatory. Two unidentified men, one on teh roof and the other in the courtyard, shoveling snow. The Monastery served as a dormitory for visiting scientists. Both men are wearing hats and are holding...
First model of Mount Wilson Observatory under construction; buildings in position, but no trees. On the wall behind the model is a wall calendar, displaying March 1920. A portion of a door can be seen behind the model also.
Workmen cutting down a large pine tree at the 100-inch telescope site, Mount Wilson Observatory. The two (2) unidentified men standing in front of the tree are holding both ends of a crosscut saw. A third unidentified man stands nearly behind the...
8-ton float for the 100-inch telescope, on south pedestal, Mount Wilson Observatory. Lumber and other construction debris can be seen in the area surrounding the float. The interior balcony is behind the round float; the interior walls are behind...
Installation of trunnion on the south float of the 10-inch telescope, Mount Wilson Observatory. The trunnion is seen mounted on the float, with ropes still attached by block and tackle. Wooden scaffolding is in front of the float. The interior...
Lower section of the 100-inch telescope tube, mounted on a truck, outside the Mount Wilson Observatory's Pasadena offices, side view. An unidentified construction worker poses behind the tube at the back of the truck. Behind the truck and tube an...
100-inch telescope mirror cell, showing support system, Mount Wilson Observatory. The telescope's worm wheel is seen behind the mirror cell, and the observatory's interior balcony is behind that.
Edwin Powell Hubble, seated with his cat Nicholas Copernicus, behind an armillary sphere, with an orrery to his left. Note in the hand of Grace (Burke) Hubble: "EPH and Nicholas Copernicus, March 1953".
Gardener's cottage and garages behind Hale Observatories office building, Pasadena, just prior to demolition. A large tree grows next to the gardener's cottage, far left. An automobile is parked inside the garage. Palm trees are seen in the...
Gardener's cottage, garages, and telescope erecting house behind Hale Observatories office building, Santa Barbara Street, Pasadena, just prior to demolition. A large tree covers most of the cottage.
Grace Burke Hubble on horse "Streaky" at the Rio Blanco Ranch. Note in the hand of Edwin Powell Hubble on verso: "Grace on "Streaky" Rio Blanco Ranch, Colorado, 1939." The Rio Blanco Ranch is located in Meeker, Colorado. Mature pine trees are...
Harold Brown addressing the guests at the dedication of the 60-inch telescope, Palomar Observatory. Brown is standing behind a podium, inside the Oscar G. Mayer memorial building which houses the telescope. A small portion of the telescope is seen...
Harold Brown addressing the guests at the dedication of the 60-inch telescope, Palomar Observatory. Brown is standing behind a podium, inside the Oscar G. Mayer memorial building which houses the telescope. The small crowd of unidentified guests,...
Harold Brown addressing guests at the dedication of the 60-inch telescope, Palomar Observatory. Brown is standing behind a podium, inside the Oscar G. Mayer memorial building which houses the telescope. A small portion of the telescope is seen in...