- The Emir of Bokhara and His Country: Journeys and Studies in Bokhara
- The Second Danish Pamir-expedition: Old And New Architecture In Khiva, Bokhara, And Turkestan
- Through the Unknown Pamirs: The Second Danish Pamir Expedition, 1898 - 99
- The Second Danish Pamir Expedition: A Vocabulary Of The Dialect Of Bokhara
- A Vocabulary Of The Dialect Of Bokhara