Above, a lump sucker; below, a snail sucker. Engraving by He Wellcome V0022052

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Above, a lump sucker; below, a snail sucker. Engraving by He. Title: Above, a lump sucker; below, a snail sucker. Engraving by He. Description: Above, a lump sucker; below, a snail sucker. Engraving by Heath. Iconographic Collections Keywords: Heath. Credit line: : This file comes from Wellcome Images, a website operated by Wellcome Trust, a global charitable foundation based in the United Kingdom. Refer to Wellcome blog post (archive).This tag does not indicate the copyright status of the attached work. A normal copyright tag is still required. See Commons:Licensing.. References: Library reference: ICV No 22474 Photo number: V0022052 Full Bibliographic Record: http://catalogue.wellcomelibrary.org/record=b1199772. Source/Photographer: https://wellcomeimages.org/indexplus/obf_images/93/cd/ce7eaea17c03a06d727cc81c45de.jpg Gallery: https://wellcomeimages.org/indexplus/image/V0022052.html Wellcome Collection gallery (2018-03-23): https://wellcomecollection.org/works/rzfgudwq CC-BY-4.0. Licensing[edit].mw-parser-output.responsive-license-cc{clear:both;text-align:center;box-sizing:border-box;width:100%;justify-content:space-around;align-items:center;margin:0.5em auto;background-color:#f9f9f9;border:2px solid #e0e0e0;border-spacing:8px;display:flex}.mw-parser-output.responsive-license-cc div{margin:4px}.mw-parser-output.rlicense-text div{margin:0.5em auto}@media screen and (max-width:640px){.mw-parser-output.responsive-license-cc{flex-flow:column}.mw-parser-output.rlicense-text{order:1}} This file is licensed under the Creative Commons Attribution 4.0 International license. You are free: to share – to copy, distribute and transmit the work to remix – to adapt the work Under the following conditions: attribution – You must give appropriate credit, provide a link to the license, and indicate if changes were made. You may do so in any reasonable manner, but not in any way that suggests the licensor endorses you or your use. https://creativecommons.org/licenses/by/4.0CC BY 4.0 Creative Commons Attribution 4.0 truetrue