|
Date: |
|
Description: | 82a (Anderson Catalogue number in red paint on a white ground). L.O.106 (Old departmental catalogue number in aluminium paint) MANU Unsigned. pre 1727 DES after GALILEI,Galileo. 1619 Florence, Italy DES HOOKE,Robert 1665 London, England. DES after HANSSEN, Zaccaharis (Zacharias) circa 1595 Middleberg, Netherlands. On display in the Hunterian Entrance Hall from May 2007.
This is a compound monocular microscope described by Robert Hooke in the first ever book on microscopy called "Micrographia" published in 1665. It was made in about 1670 and is believed to be the oldest scientific instrument in the University.
The instrument's 'field' lens is detachable so that it can be used as a simple microscope. This is one of the few remaining examples of the first three lens compound microscopes and is of the Hooke type rather than the Marshall as described in earlier university documents. It does not possess the refinements of a fine focussing screw or a universal ball-joint support typical of the Marshall design. The leather tooling, the finial on the pillar and the simple base are also characteristic of earlier Hook type instruments. The field lens collects light from the objective and transmits it to the eye lens parallel to the axis of the body tube. This enables the viewer to alter the focal length of the instrument by adjusting the single draw tube. The down side is that the microscope needs an extra light source to illuminate the object under study. The nose piece is made of brass and screws into a ring nut attached to a hexagonal arm which is attached to the brass pillar by a sliding clamp. The square section pillar is attached to the lead filled base presumably by a nut now buried in the lead. The ebony stage sits on an adjustable brass slide attached to the pillar by a wing nut. | License: | http://www.hmag.gla.ac.uk/spirit/rights/ | Publisher: | Hunterian Museum and Art Gallery, University of Glasgow | Rights holder: | Hunterian Museum and Art Gallery, University of Glasgow | Subjects: | SCIENTIFIC COLLECTION : | Source: | Hunterian Museum | Creator: | Hunterian Museum and Art Gallery, University of Glasgow | Identifier: | http://www.huntsearch.gla.ac.uk/cgi-bin/... | Language: | en-GB | Go to resource |
|
|