Document type definition. A document type definition (DTD) is a set of markup declarations that define a document type for an SGML-family markup language (SGML, XML, HTML). A Document Type Definition (DTD) defines the legal building blocks of an XML document. It defines the document structure with a list of legal elements and attributes. A DTD can be declared inline inside an XML document, or as an external reference.
American hornbeam. The American hornbeam is a native forest understory tree in the Chicago area, making it useful for shady landscapes and naturalized or woodland gardens.New leaves emerge reddish-purple, changing to dark green, then turn yellow to orange-red in the fall, offering a kaleidoscope of color throughout the year.merican hornbeam. The American hornbeam is a native forest understory tree in the Chicago area, making it useful for shady landscapes and naturalized or woodland gardens.
Ziggy Elmanâs trumpet finds a new home. A trumpet known to belong to the great swing-era trumpeter Ziggy Elman has a new owner in San Angelo, Texas. Dr. Joe Kasberg has purchased the horn with part of this sale benefitting the ITG (International Trumpet Guild). The trumpet was on display at the 2015 ITG conference in Columbus, Ohio.