apparatus for movement experiments
Date1880-1900
Inventory NumberWJ0954
ClassificationLantern Slide Mount
Subject
Maker
American
?
Cultural Region
Dimensions11.4 × 23.4 × 3.5 cm (4 1/2 × 9 3/16 × 1 3/8 in.)
Material
DescriptionThis device is a rectangular two lantern slide changer that has been adapted for use in psychological experiment or demonstration. Specifically, to make actual movement vs. apparent movement experiments. There are two interchangeable brass plates, marked "1-2" and "3-4," which can be used in different experiments (each side of these plates have different rectangular openings). There is one other brass plate, the top one, that is attached to a spring. It is held in place by small holes punched on one side of the plate, a simple key releasing the plate to start the experiment.
Signedunsigned
Inscribedetched on plate: 3
John Cuthbertson
Date: 1770-1815
Accessories: brown storage box, descriptive tag, thin strip of paper in box with the inscription "lucernal microscope" in David P. Wheatland's handwriting (which refers to figs. 47-48 and 51 in this series), page from the book "Old Science and Medicine" with a photographic copy of the first print from this series, entitled "The Large Electric Machine at Haarlem."
Object number: 1998-1-1087
Harvard Cyclotron Laboratory
Object number: 2025-04-0011r
Harvard Cyclotron Laboratory
Date: 1947-2002
Object number: 2003-1-0291
Henry Hughes & Son, Ltd.
Date: 1900-1915
Accessories: instruction manual for instrument is in box of disassembled parts.
Object number: DW0141k
Theodore Lyman IV
Date: circa 1918
Object number: 2002-1-0038
Central Scientific Company
Date: 1948
Object number: 1997-1-1006
W & A. K. Johnston, Ltd.
Date: c. 1872
Accessories: rectangular and round wood stretchers
Object number: 2008-1-0308b