Über einfache pflanzenbasen und ihre beziehungen zum aufbau der eiweissstoffe und lecithine Q Science
The students’ guide in quantitative analysis intendend as an aid to the study of Fresenius’ system Q Science
Atmospheric radiation: a research conducted at the Allegheny observatory and at Providence, R. I Q Science
Report of the second Norwegian Arctic Expedition in the “Fram”, 1898-1902. Published by Videnskabs-selskabet i Kristiania, at the expense of the Fridjof Nansen Fund for the Advancement of Science Q Science
Marine flora and fauna of the Northeastern United States. Crustacea : Cumacea / Les Watling Q Science
