ObjectsViewing Record 366 of 537
Previous Record Next Record
Switch Views: Lightbox | Image List | List
Welcome to the archived version of the MIT Museum's online collections portal! This site was used to test features and content for the newly redesigned MIT Museum Collections site, which has now launched with over 106,000 objects. Please use the new MIT Museum Collections site for further research and discovery. Webmuseum.mit.edu remains online during the transition period but will not receive new updates or content.
Handmade slide rule for fetal head circumference
Named collection: Keuffel & Esser Company Collection
Object type: slide rule
Maker: Materials: wood
Measurements: 1/4 in x 10 1/2 in x 1 in
Handwritten paper scales glued over existing rule marked "250 BT" on slide. On front: "Set arrow on proper object-film dist. & read result of middle scale below." On back: "Mean scalp circumference of fetal head [=skull circum. plus 2 cm] in cm]" against "age of fetus in weeks"
Keuffel & Esser Company Slide Rule Collection Donated by InteliCoat Technologies