 Electrons are atomic, since they have no parts which are electrons. Also, if ships have no parts which are ships, then ‘ship’ is an atomic kind term as well (Zimmerman 1995, p. 75; Sider 2001). Portions of non-atomic gunk or infinitely divisible matter of a kind K are K through-and-through, as would an infinitely descending chain of ‘box-particles’, each of which contains a box-particle (Gardner 1983, p. 26). Fruit cake is arguably a fuzzy atomless substance, since it can have parts (e.g., half a blueberry with some gluten attached) that are not determinately fruit cake. (cf. Landman 2011 on ‘mess mass nouns’). Some mass terms, e.g., ‘cutlery’ and ‘gold’ are heterogeneous. While a fork is some cutlery, a tine is not, and, presumably, an electron in a gold atom is not gold. Not all the categories are mutually exclusive, and the list is not intended to be exhaustive for all kind-terms.