https://remotereference.librarycompany.org/files/original/128ad5a8877f8faa1dc9a6fc2f031b19.pdf 0168be6d9a7124d49fecba4890b87e00 Dublin Core The Dublin Core metadata element set is common to all Omeka records, including items, files, and collections. For more information see, http://dublincore.org/documents/dces/. Title A name given to the resource Chicago, Ills. Dec. 9., ’92. Dr. S. B. Collins, R. 27, Am. Exp. Bldg. Chicago, Ills. Dear Sir: I can truthfully say that you have cured me of the Morphine Habit, to which I was a victim for years. ... Subject The topic of the resource Opium abuse Ephemera. Letters. Creator An entity primarily responsible for making the resource Collins, Samuel B., 1835-1893. Source A related resource from which the described resource is derived Library Company of Philadelphia <a href="http://pacscl.exlibrisgroup.com:48992/F?func=direct&amp;doc_number=000305043">http://pacscl.exlibrisgroup.com:48992/F?func=direct&amp;doc_number=000305043</a> Publisher An entity responsible for making the resource available [United States : s.n., ca. 1892] Identifier An unambiguous reference to the resource within a given context Coll. Helfand Popular Medicine 2013 Addiction 17424.Q.59 (Helfand)