@book{bhlitem21693, title = {Bulletins de l'Académie royale des sciences, des lettres et des beaux-arts de Belgique }, volume = {t.18:pt.1 (1851)}, copyright = {Public domain. The BHL considers that this work is no longer under copyright protection.}, url = {https://www.biodiversitylibrary.org/item/21693}, note = {https://www.biodiversitylibrary.org/bibliography/5550}, publisher = {Bruxelles}, author = {Académie royale des sciences, des lettres et des beaux-arts de Belgique.}, year = {1851}, pages = {726}, keywords = {Belgium|Brussels|Learned institutions and societies|Periodicals|Science}, }