{"@context":"http://iiif.io/api/presentation/2/context.json","@id":"https://edisondigital.rutgers.edu/iiif/2/D8822AAB/manifest","@type":"sc:Manifest","label":"[D8822AAB], Letter from John Blair to Thomas Alva Edison, February 20th, 1888","thumbnail":{"@id":"https://edisondigital.rutgers.edu/files/medium/D8822AAB/er0690.jpg","@type":"dctypes:Image","format":"image/jpeg","width":462,"height":685},"license":"https://creativecommons.org/publicdomain/zero/1.0/","attribution":"Provided by The Thomas A. Edison Papers at Rutgers University","related":{"@id":"https://edisondigital.rutgers.edu/document/D8822AAB","format":"text/html"},"seeAlso":{"@id":"https://edisondigital.rutgers.edu/api/items/46125","format":"application/ld+json"},"metadata":[{"label":"Title","value":"[D8822AAB], Letter from John Blair to Thomas Alva Edison, February 20th, 1888"},{"label":"Editor's Notes","value":""Learning that you have been experimeting with a view of communicating between ships at a distance by aid of telegraphy. I send you the results of an experiment by me that may be of use to you. ### I made a horn like your Megaphone but differing in the [unclear] as described and placing it in water. Could by its aid here a man speak "a mile distant, or a blow struck by any oar upon the water" can be heard [unclear] miles away. ### I think you can understand the idea as described; and know how to apply it. ### This HydroMegaphone may be of use to assist you in the direction sought. And if so you are welcome to it.""},{"label":"Author","value":"Blair, John"},{"label":"Recipient","value":"Edison, Thomas Alva"},{"label":"Date","value":"1888-02-20"},{"label":"Type","value":"Letter"},{"label":"Subject","value":["Railroads and transportation","Telegraph","Microphone and other acoustic devices"]},{"label":"Folder/Volume ID","value":"D8822-F"},{"label":"Microfilm ID","value":"122:692"},{"label":"Document ID","value":"D8822AAB"},{"label":"URL","value":"https://edisondigital.rutgers.edu/document/D8822AAB"},{"label":"Rights","value":"Thomas Edison National Historical Park"},{"label":"Publisher","value":"Thomas A. Edison Papers, School of Arts and Sciences, Rutgers University"},{"label":"Timestamp","value":"20 February 1888"},{"label":"Has Version","value":"Archive.org Viewer, Microfilm Series Reel 122"}],"sequences":[{"@id":"https://edisondigital.rutgers.edu/iiif/2/D8822AAB/sequence/normal","@type":"sc:Sequence","label":"Current Page Order","viewingDirection":"left-to-right","canvases":[{"@id":"https://edisondigital.rutgers.edu/iiif/2/D8822AAB/canvas/p1","@type":"sc:Canvas","label":"1","thumbnail":{"@id":"https://edisondigital.rutgers.edu/files/medium/D8822AAB/er0690.jpg","@type":"dctypes:Image","format":"image/jpeg","width":462,"height":685},"width":462,"height":685,"images":[{"@id":"https://edisondigital.rutgers.edu/iiif/2/D8822AAB/annotation/p0001-image","@type":"oa:Annotation","motivation":"sc:painting","resource":{"@id":"https://edisondigital.rutgers.edu/iiif/2/229555/full/462,685/0/default.jpg","@type":"dctypes:Image","format":"image/jpeg","width":462,"height":685,"service":{"@context":"http://iiif.io/api/image/2/context.json","@id":"https://edisondigital.rutgers.edu/iiif/2/229555","profile":"http://iiif.io/api/image/2/level2.json"}},"on":"https://edisondigital.rutgers.edu/iiif/2/D8822AAB/canvas/p1"}]},{"@id":"https://edisondigital.rutgers.edu/iiif/2/D8822AAB/canvas/p2","@type":"sc:Canvas","label":"2","thumbnail":{"@id":"https://edisondigital.rutgers.edu/files/medium/D8822AAB/er0691.jpg","@type":"dctypes:Image","format":"image/jpeg","width":583,"height":841},"width":583,"height":841,"images":[{"@id":"https://edisondigital.rutgers.edu/iiif/2/D8822AAB/annotation/p0002-image","@type":"oa:Annotation","motivation":"sc:painting","resource":{"@id":"https://edisondigital.rutgers.edu/iiif/2/229556/full/583,841/0/default.jpg","@type":"dctypes:Image","format":"image/jpeg","width":583,"height":841,"service":{"@context":"http://iiif.io/api/image/2/context.json","@id":"https://edisondigital.rutgers.edu/iiif/2/229556","profile":"http://iiif.io/api/image/2/level2.json"}},"on":"https://edisondigital.rutgers.edu/iiif/2/D8822AAB/canvas/p2"}]}]}]}