Search Results
-
-
-
2 items
Manual of Physico-Chemical Measurements
- 1894
Digitized content includes two figures of Ernst Otto Beckmann (1853-1923) apparatus for boiling point elevation.
-
2 items
Letter from Georg Bredig to Max Bredig, June 25, 1936
- 1936-Jun-25
Georg Bredig (1868-1944) inquires about the well-being of his son, Max Bredig (1902-1977), who is on a business trip to London and Amsterdam in the summer of 1936. Georg additionally suggests places to visit in…
-
3 items
Letter from Viktor Rothmund to Georg Bredig, November 1918
- 1918-Nov-24
Viktor Rothmund (1870-1927), a German chemist working in Prague, describes the perilous state of scientific activities at his university after the ravages of the First World War. He additionally mentions that he hopes…
-
2 items
Letter from William Prescott Smith to James Curtis Booth, December 10, 1852
- 1852-Dec-10
William Prescott Smith confirms the date for a lecture to be given by James Curtis Booth (1810-1888) at the Maryland Institute.
-
2 items
Letter from William Prescott Smith to James Curtis Booth, August 21, 1852
- 1852-Aug-21
James Curtis Booth (1810-1888) receives details regarding the lectures he has been invited to deliver at the Maryland Institute.
-
2 items
Letter from William Prescott Smith to James Curtis Booth, August 13, 1852
- 1852-Aug-13
James Curtis Booth (1810-1888) is invited to deliver two lectures at the Maryland Institute.
-
Letter from Max Bredig to Georg Bredig, October 9, 1938
- 1938-Oct-09
Max Albert Bredig (1902-1977) writes to his father Georg Bredig (1868-1944) about a lecture he gave on Kasimir Fajans' (1887-1975) “Chemical Analysis with X-rays.” He mentions a "Formalinkiste," a formalin box in…
-
2 items
Letter from Max Bredig to Georg Bredig, November 9, 1937
- 1937-Nov-09
After immigrating to the United States in the fall of 1937 upon the invitation of Kasimir Fajans (1887-1975), Max Bredig (1902-1977) updates his father, Georg Bredig (1868-1944), on his professional and social life at…
-
2 items
DeBakey knitted arterial graft of Dacron
- 1958
Hollow 8 mm tube of crimped, flexible Dacron (synthetic polyester fiber), off-white in color, and pink orange product label housed in original sealed plastic bag. Typically in the shape of a tube, Dacron grafts are…
-
Bernie Thiegs at work in Dow Agricultural Research and Development Laboratory
- 1954
General view of chemist Bernie Thiegs working with various specimens at the Dow Chemical Company's Agricultural Chemical Research and Development Laboratory facilities. Per an article in the August 1941 edition of the …
-
-
British Phosphate Commission motor ship
- 1961
General view of the M.V. "Triaster" motor ship being loaded with phosphate at the cantilever located in Christmas Island, Nauru. This ship was managed by the British Phosphate Commissioners, a board of representatives…
-
Exhibit concerning fertilizer values
- Circa 1926
U.S. Department of Agriculture exhibition display concerning fertilizer values as determined by per cent of plant food. The display includes several photographs of a range of agricultural crops, including wheat, cotton,…
-
2 items
Experimental blast furnace at Fixed Nitrogen Research Laboratory plant
- 1932-Oct-12
Two views of the No. 2 experimental blast furnace on a burden (a load, especially a heavy one) of phosphate at a U.S. Department of Agriculture's Fixed Nitrogen Research Laboratory plant.
The Fixed Nitrogen Research…
-
Employees observing temperature inside Royster stoves at experimental blast furnace
- 1934-Apr-05
General view of unidentified employees observing the temperature inside the Royster stoves at the Fixed Nitrogen Research Laboratory's experimental blast furnace plant during a Tennessee Valley Authority (T.V.A.)…
-
No 2. experimental blast furnace on burden of phosphate
- 1932-Oct-12
General view of the No. 2 experimental blast furnace on a burden (a load, especially a heavy one) of phosphate at a U.S. Department of Agriculture's Fixed Nitrogen Research Laboratory plant.
The Fixed Nitrogen Research…
-
Variety of tools used at U.S. Department of Agriculture facilities
- 1950s – circa
General view of a variety of tools used to handle radioactive substances and other materials at U.S. Department of Agriculture facilities. The tools are labelled with numbers, presumably corresponding to an…
-
Apparatus at U.S. Department of Agriculture facility
- 1950s
General view of an unidentified apparatus at an unidentified U.S. Department of Agriculture facility.
-
Apparatus at U.S. Department of Agriculture facility
- 1950s
General view of an unidentified apparatus at a U.S. Department of Agriculture facility. A radioactive materials sign and protective glass panel are visible to the right of the apparatus. The U.S.D.A. commonly used…
-
Drillability apparatus components
- 1950s
Component parts, likely of a drillability apparatus, used at an unidentified U.S. Department of Agriculture facility.
-
Sterile culture of small phanerogams at the Fixed Nitrogen Research Laboratory
- 1930-Jan-08
Close-up view of a sterile culture of small phanerogams, also known as spermatophytes or seed plants, at the U.S. Department of Agriculture's Fixed Nitrogen Research Laboratory located in Washington, D.C. The…
-
Alsike clover plant at the Fixed Nitrogen Research Laboratory
- 1930-Jan-08
Close-up view of an alsike clover plant at the U.S. Department of Agriculture's Fixed Nitrogen Research Laboratory located in Washington, D.C. Notably, the root of the plant is growing from the pedicel (i.e. the stem…
-
Ore-crushing machinery at blast furnace plant
- 1930-Mar-21
General view of machinery used to crush ore at the Fixed Nitrogen Research Laboratory's blast furnace plant. A worker identified as "Parker" is seen transferring raw material, presumably ore, from a machine into a…