@book{bhlitem264117, title = {Annual report of the Yorkshire Philosophical Society }, volume = {Yr.1929(1930)}, copyright = {In copyright. Digitized with the permission of the rights holder.}, url = {https://www.biodiversitylibrary.org/item/264117}, note = {https://www.biodiversitylibrary.org/bibliography/148582}, publisher = {Yorkshire Philosophical Society, }, author = {Yorkshire Philosophical Society and Yorkshire Philosophical Society}, year = {1930}, pages = {89}, }