@article{Wikforss2005-WIKNNK,pages = {65--87},title = {Naming Natural Kinds},author = {Asa Maria Wikforss},number = {1},year = {2005},abstract = { This paper discusses whether it can be known a priori that a particular term, such as water, is a natural kind term, and how this problem relates to Putnams claim that natural kind terms require an externalist semantics. Two conceptions of natural kind terms are contrasted: The first holds that whether water is a natural kind term depends on its a priori knowable semantic features. The second},journal = {Synthese},volume = {145}}@