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…

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.

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…

Mexican postage stamp issued to commemorate the 40th anniversary of the founding of the Instituto Politécnico Nacional de México (the National Polytechnic Institute of Mexico) on January 1, 1936. Established during the…

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

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

Periodic table designed in the style of a cube by J. Francis Young, Professor of Civil and Ceramic Engineering, University of Illinois. This table was published by Instruments for Research and Industry and includes…

Green plastic case with snap lid on front; kit comes with five different types of plastic pieces: 12 multi-colored balls, eight gray "double bonds" pieces, one gray "triple-bonded carbon pairs" rod, and dozens of…

Periodic table designed in the style of a pyramid by Charles E. Gragg. This table was published by Instruments for Research and Industry and includes instructions for assembly into a 3-D model.

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…

Three dimensional representation of the periodic table of elements (unassembled). ElemenTree is made of transparent Vivak plastic in pink and green with black text. The tree has 17 pieces (layers are polygonal) with a…

The "Periodic Round Table" looks like a multi-layered cake. There are eight wooden layers that sit on top of one another and can be rotated. Layers are divided into chemical elements with engraved element name and…

An instruction manual written to accompany the Smithsonian MicroChemistry XM 5000 chemistry set. Intended for use by children ages 10 and older, the manual describes how to use the set's tools, then outlines a series of…

Gray plastic (Rubbermaid) container; two panels open to the right and left and snap into place with small protrusions on the raised base platform; platform also has two support sticks that can be rotated outward so…

Markus D. Meister was born in Siegsdorf, Germany, a small town in Swabian Germany, in the foothills of the Alps. His father completed a PhD in physics, and when Markus was a young boy the family moved to the village of…

This letter from Arnold O. Beckman invites potential attendees (and potential donors) to a conference on the future of science education in Orange County, California. This initiative to improve science education was…

Bruce A. Hamilton was born in Palo Alto, California, where his father was a graduate student in engineering. His mother was at that time a housewife. Having finished his master's degree, the older Hamilton began work in…

Jennie R. Patrick grew up in Gadsden, a small, typically Southern, town in Alabama, the fourth of five children. Her parents were laborers whose formal education stopped in junior high school. As a child, she had no…

Catherine T. Hunt grew up in Bronxville, New York, one of seven children. Her father was a chemist at Allied Chemical Company, and Katie often went to work with him and always had questions for him about why things are…

Memory game features 54 card deck; 34 cards feature element number and cartoon characters who personify or act out elements and their characteristics, 16 group cards, and 4 command cards; game includes Periodic Table of…

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…

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…

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…

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…

Practical exercises in the use and application of polarization microscopes provided by Professor Schwartzman.