Cardboard box with color printing on lid, showing young men and women engaged in chemical testing of environmental factors (air, water). Inside is a blue plastic tray with wells for test equipment, including a…

Chemistry sets reached their heyday in the 1950s, but production of them began in the United States during World War I. Playing with a toy chemistry set inspired many a boy to become a chemist, and not until the late…

Chemistry sets reached their heyday in the 1950s, but production of them began in the United States during World War I. Playing with a toy chemistry set inspired many a boy to become a chemist, and not until the late…

This is one of Porter Chemical Company's first Chemcraft sets. In the early 20th century, companies like the Porter Chemical Company and A.C. Gilbert began to manufacture and sell chemistry laboratories and kits.…

Fourth page of handwritten lecture notes with diagrams prepared by Louis Pasteur for a lecture to the National Academy of Medicine on the subject of crystal structures, tartaric acid, and arsenites. This work led to the…

Third page of handwritten lecture notes with diagrams prepared by Louis Pasteur for a lecture to the National Academy of Medicine on the subject of crystal structures, tartaric acid, and arsenites. This work led to the…

Photograph depicting male and female chemistry students in a laboratory at an unidentified school or college. The students are grouped around several laboratory stations and are seen using test tubes and Bunsen burners…

Group photograph depicting members of the chemistry club at Wilson College in Chambersburg, Pennsylvania. The group consists of nine women gathered around a table while observing one member pouring an unknown substance…

Photograph depicting a group of male and female chemistry students at an unknown school or college. The students are posed holding assorted laboratory equipment and glassware. Some of the female students are also…

Models kits, such as this one, are often found in laboratories and classrooms and are used to visualize the structure of chemical substances.

Transparent plastic container with five interior compartments for multicolored plastic pieces. Instruction manual included.

Models kits, such as this one, are often found in laboratories and classrooms and are used to…

Small, multicolored plastic connectors and straws in small plastic bag.

Models kits, such as this one, are often found in laboratories and classrooms and are used to visualize the structure of chemical substances.

Rectangular grey cardboard box with white writing and colored disks on sides; box contains a cardboard separator that divides the inside into four compartments and an instruction booklet; the compartments contain a…

Blue cardboard box containing three compartments; two compartments hold a number of black and white stone marbles; third compartment holds four brass rods, numerous glass spacers, and sheets of thin paper; box also…

White cardboard box with blue writing; contains black, blue, yellow, red, and green spheres as well as wooden and metal connectors.

Models kits, such as this one, are often found in laboratories and classrooms and are…

Acknowledges receipt of Sharplep's "Chemical Tables," and expresses pleasure at its organization and content.

Cover letter for preliminary circular in regard to Instruction in Chemistry at Johns Hopkins University.

Concerning possibility of publishing an early Pauling manuscript in a high school textbook or in an issue of "Chemistry."

Concerns recommendation of Tom Newlin as a teaching assistant as well as plans for revising the Chemistry program at Earlham College. The last paragraph makes references to the current state of development of solar…

Written by Joshua Lederberg while 17 years old, seeking permission to take Stodola's Chem s42C course, despite not having taken the necessary prerequisites.

Concerning appointment of Stodola as an Instructor at Columbia University.

Black Bakelite cylindrical base with four steel arms giving it support; red Bakelite circles are attached to the end of each arm; the model itself is attached with a steel arm that protrudes upward from the base; model…