[...] in any one form-class, every form contains an element, the 'class-meaning, which is the same for all forms of this form-class.
- Bloomfield (1935), a pag.146

[...] the 'class-meaning' : the feature of meaning that is common to all the lexical forms in the form-class.
- Bloomfield (1935), a pag.266

Class-meanings are merely composites, or, one might say, greatest common factors, of the grammatical meanings which accompany the forms.
- Bloomfield (1935), a pag.267

[...] class-meanings are not clearly-definable units which could serve as a basis for our work, but only vague situational features, undefinable in terms of our science.
- Bloomfield (1935), a pag.267-268