@book{bhlitem97418, title = {Humboldt; Monatsschrift für die gesamten Naturwissenschaften }, volume = {jahrg. 7 1888}, copyright = {Public domain. The BHL considers that this work is no longer under copyright protection.}, url = {https://www.biodiversitylibrary.org/item/97418}, note = {https://www.biodiversitylibrary.org/bibliography/44721}, publisher = {Stuttgart, F. Enke, 1882-90}, author = {Krebs, Georg, and Damer, Otto,}, year = {1882}, pages = {552}, keywords = {Periodicals|Science|}, }