Illustrated depiction of the production of Saran Wrap at the Dow Chemical Company in three stages. Stage 1 depicts the harvesting of raw materials, including petroleum and brine, and the manufacture of assorted…

Two views of the vertical retort and wood loading conveyor at the Cliffs Dow wood sawmill and distillation plant located in Marquette, Michigan. Seeking a source of raw material for its new plastic, ethylcellulose, the…

General view of a section of the wood storage at the Cliffs Dow sawmill and wood distillation plant located in Marquette, Michigan. The employee visible in the photograph is unidentified.

Seeking a source of raw…

General view of an unidentified employee standing on top of a pile of logs at the Cliffs Dow sawmill and wood distillation plant located in Marquette, Michigan. An Insley Excavator is visible on the right-hand side of…

General view of an unidentified employee standing on top of a pile of logs at the Cliffs Dow sawmill and wood distillation plant located in Marquette, Michigan. An Insley Excavator is visible on the left-hand side of…

Elevated view of the sawmill at the Cliffs Dow wood distillation plant located in Marquette, Michigan taken from the perspective of the vertical retort, with view of wood storage in background. Seeking a source of raw…

General view of the vertical retort and wood loading conveyor at the Cliffs Dow sawmill and wood distillation plant located in Marquette, Michigan. Providing a sense of scale, two unidentified employees are visible in…

General view of the interior of the sawmill at the Cliffs Dow wood distillation plant located in Marquette, Michigan, with view of various employees and machinery. The employees pictured in the photograph are…

Close-up view of a newly-installed reproduction of the Dow Chemical Company's diamond emblem on the roof of the South Power Station at the Company's headquarters in Midland, Michigan. An unidentified Power Division…

Three views of the installation of a new sign on the roof of the South Power Station at the Dow Chemical Company's headquarters in Midland, Michigan. Installed in 1950, the sign measured 217 feet long and was visible to…

General view of plant pathologists Richard Gruenhagen (left) and Jack Hardy (right) at work in the Dow Chemical Company's Agricultural Research Laboratory in Seal Beach, California.

General view of an unidentified employee inspecting a saran bubble as it is extruded from a machine during the production of saran film at the Dow Chemical Company plant in Midland, Michigan. During production, the film…

Elevated view of employees at work in the Dow Chemical Company's saran film manufacturing facilities in Midland, Michigan. During production, saran film was trimmed and wound into so-called inventory rolls, such as…

General view of saran bubbles being extruded from rolling machines during the production of saran film at the Dow Chemical Company plant in Midland, Michigan. During production, the film passed through a series of…

General view of an unidentified female employee at work in the Dow Chemical Company's saran film manufacturing facilities in Midland, Michigan. The employee appears to be using a type of press to smooth lengths of saran…

General view of an unidentified employee at work in the Dow Chemical Company's saran film manufacturing facilities in Midland, Michigan. Saran plastic is seen passing through some type of bath or wash by virtue of a…

General view of two unidentified employees at work in the Dow Chemical Company's saran film manufacturing facilities in Midland, Michigan. The employees are seen stretching a length of film between two rollers. During…

General view of employees at work in the Dow Chemical Company's saran film manufacturing facilities in Midland, Michigan. Initially developed for the U.S. Army to wrap arms and equipment for transport during World War…

Group photograph of executives of the Cliffs Dow Chemical Company, a subsidiary of the Dow Chemical Company located in Marquette, Michigan. Several of the individuals are dressed in mining gear and the group is posed…

General view of laboratory technicians analyzing assorted materials in a Dow Chemical Company laboratory. Per notations accompanying the photograph, Bill Herrick (left) is analyzing calcium chloride, which was used for…

General view of technician Leo Ruhnau using an apparatus to determine the percentage of hydrochloric acid in Dowell acids at a Dow Chemical Company laboratory.

General view of technician James Geary using a Klett-Summerson Photoelectric Colorimeter to obtain a determination of iodine at a Dow Chemical Company laboratory. Colorimeters are commonly used to determine trace…

General view of three technicians using vacuum tube titrators to titrate aluminum in a Dow Chemical Company laboratory. The individuals visible in the photograph are identified as (left to right) Lois Nystrom, Rosemary…

General view of technicians Marguerite Tenhunen (left) and Dorothy Ferris (right) using assorted apparatus in a Dow Chemical Company laboratory to determine the quantity of zinc present in experimental alloys.

General view of employees posed before the exterior of a building at the Hercules Powder Company's smokeless-powder plant located In Kenvil, New Jersey. Established in 1872 by the Atlantic Giant Powder Company, the…