An invitation to an anniversary dinner held on September 20, 1960 at the Caledonian Hotel in Edinburgh. In addition to a menu (featuring such delicacies as Tortue Verte Boulevard Pasadena and Soufflé Surprise à la…

This manual appears to have been a well-used desk copy. The stained cover provides evidence of secondary usage as a coaster.

The first Beckman Instruments DU Spectrophotometer was developed in 1940, when the company…

The Beckman Instruments IR spectrophotometers began as a request from the Office of Rubber Reserve to Arnold O. Beckman in 1942, asking for an infrared spectrophotometer that they could use to create rubber. Under this…

The Beckman DB spectrophotometer was a double beam model, which allowed for comparison between two light paths: a reference and the sample being measured.

The first Beckman Instruments DU Spectrophotometer was developed in 1940, when the company was still called National Technical Laboratories. Spurred by employee Howard Cary (who had previously been involved in pH meter…

Though the instruction manual is undated, details such as the November 1956 drawing dates provide clues about creation and publication dates.

Beckman Instruments' analog computers were being produced by their Berkeley…

Developed from a Linus Pauling design during WWII, the technology behind Beckman Instruments’ oxygen analyzers ended up doing such diverse jobs as monitoring astronauts’ respiration, maintaining packaged food safety,…

The document describes various projects of the Beckman Instruments' Space Engineering Group, listed chronologically.

These projects were mostly contracted by United States government departments and agencies, although…

Beckman's Space Engineering Group designed and built "the Moonspoon," a prototype instrument to sample and analyze lunar soil via absorption spectroscopy.

The second side of the poster has been cropped into three parts for ease of reading. These particular instruments were manufactured by the E. Vernon Hill Company based in Chicago.

Psychrometers, also known as…

This account of Howard Cary's life covers the period from his birth to his initial contact with National Technology Laboratories and brief discussion of his later involvement with pH meter development. He devotes a fair…

In this letter, Evans discusses a new electrode design for use in Beckman pH meters.

Arnold Beckman invented his first pH meter in 1934 at the request of a chemist from the California citrus industry, who needed an…

The letter discusses shipment of wheat germ, expenses; demonstrations of the acidimeter at the Pennsylvania General Hospital, University of Pennsylvania, the Department of Agriculture, and the Bureau of Standards;…

Regarding Beckman's business travels to meet with two potential acidimeter distributors, Central Scientific Co. and Sargent Co.

Dr. Arnold O. Beckman (1900-2004) invented the first commercially successful electric pH…

Regarding Beckman's business travels to meet with a potential acidimeter distributor, A. S. Aloe Co., and Drs. Ball and Rodewald at the Washington University in St. Louis.

Dr. Arnold O. Beckman (1900-2004) invented the…

This letter includes discussion of personnel issues and policies. Lyons expresses approval for the "Beckman Acidimeter" name.

Dr. Arnold O. Beckman (1900-2004) invented the first commercially successful electric pH…

In this letter, Beckman discusses acidimeter production, personnel issues, patent applications, and the naming of the instrument.

Dr. Arnold O. Beckman (1900-2004) invented the first commercially successful electric pH…

Though unsigned, context indicates that this letter was written by Beckman.

Dr. Arnold O. Beckman (1900-2004) invented the first commercially successful electric pH meter in 1934 and thus began a long career…

Lyons gives Beckman advice about personnel decisions and discusses early sales of the "acidimeter."

Dr. Arnold O. Beckman (1900-2004) invented the first commercially successful electric pH meter in 1934 and thus began…

The contract outlines details (including salary, confidentiality, and intellectual property rights) of Howard Cary's work for Arnold Beckman.

Howard Cary (1908-1991) was a Caltech-educated engineer who joined National…

The account focuses on the early days of Beckman's entrepreneurial endeavors, from Robert Millikan referring I. H. Lyons to Beckman for assistance with National Postal Meter Company inks through the renting of a new…

In this letter, James C. Sternberg discusses details for Guinn's participation in a Technical Roundtable.

Vincent P. Guinn (1917-2002) was a chemist who began studying radiochemistry at the Oak Ridge Institute. He…

Beckman's Space Engineering Group designed and built "the Moonspoon," a prototype instrument to sample and analyze lunar soil via absorption spectroscopy.

Linus Pauling's oxygen meter was developed as a military project and the details were classified. In this letter, Pauling requested permission to discuss the oxygen meter at a Caltech seminar. He also states a desire to…

The letter regards the procurement of Pauling meters for use on submarines and issues of cost and portability.

Developed from a Linus Pauling design during WWII, the technology behind Beckman Instruments’ oxygen…