File:Freezing microtome, London, England, 1883-1885 Wellcome L0058209.jpg
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[edit]Freezing microtome, London, England, 1883-1885 | |||
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Freezing microtome, London, England, 1883-1885 |
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Description |
Invented in 1881, this type of freezing microtome used ice and salt to freeze animal and plant specimens to be sliced for microscope slides. Ice and salt were replaced by a removable ether spray in 1883. Freezing hardened and preserved the specimens’ structure quickly. Chemical preservation usually took six weeks but by using ether the process took a matter of seconds. Once frozen, a razor, operated by hand and secured by a tripod, moved across the top of specimen, creating slices. The slices were then mounted, stained and studied under the microscope by histologists. The knife and tubing is missing. modifier: Fearnley, W., maker: James Swift and Son Place made: London, Greater London, England, United Kingdom Wellcome Images |
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https://wellcomeimages.org/indexplus/obf_images/f5/6b/7bb24bde4ee8e5fd32fc1f84b798.jpg
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Short title | L0058209 Freezing microtome, London, England, 1883-1885 |
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Author | Wellcome Library, London |
Headline | L0058209 Freezing microtome, London, England, 1883-1885 |
Copyright holder | Copyrighted work available under Creative Commons Attribution only licence CC BY 4.0 http://creativecommons.org/licenses/by/4.0/ |
Image title | L0058209 Freezing microtome, London, England, 1883-1885
Credit: Science Museum, London. Wellcome Images images@wellcome.ac.uk http://wellcomeimages.org Invented in 1881, this type of freezing microtome used ice and salt to freeze animal and plant specimens to be sliced for microscope slides. Ice and salt were replaced by a removable ether spray in 1883. Freezing hardened and preserved the specimens’ structure quickly. Chemical preservation usually took six weeks but by using ether the process took a matter of seconds. Once frozen, a razor, operated by hand and secured by a tripod, moved across the top of specimen, creating slices. The slices were then mounted, stained and studied under the microscope by histologists. The knife and tubing is missing. modifier: Fearnley, W., maker: James Swift and Son Place made: London, Greater London, England, United Kingdom made: 1883-1885 Published: - Copyrighted work available under Creative Commons Attribution only licence CC BY 4.0 http://creativecommons.org/licenses/by/4.0/ |
IIM version | 2 |