Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Darstellung von Orthonitroamidoparamethoxylbenzol und Orthonitroamidoparaäthoxylbenzol durch Einwirkung von Ammoniak auf Mononitrodimethylhydrochinon oder Mononitrodiäfhylhydrochinon
XIX. Eugraphia Sinensis; or, the Art of Writing the Chinese Character with Correctness: contained in Ninety-two Rules and Examples. To which are prefixed, Some Observations on the Chinese Writing