In his smaller classes, made up of advanced students, James found it possible to comment in detail on the work of individuals. Three letters have come into the hands of the editor, from which extracts may be taken to illustrate such comments. They were written for persons with whom he could communicate only by letter, and are extended enough to suggest the _viva voce_ comments which many a student recalls, but of which there is no record. The first is from a letter to a former pupil and refers to work of Bertrand Russell and others which the pupil was studying at the time. The second and third comment on manuscripts that had been prepared as "theses" and had been submitted to James for unofficial criticism. They exhibit him, characteristically, as encouraging the student to formulate something more positive. _Jan. 26, 1908._ Those propositions or supposals which [Russell, Moore and Meinong] make the exclusive vehicles of truth are mongrel curs that have no real place between realities on the one hand and beliefs on the other. The negative, disjunctive and hypothetic truths which they so conveniently express can all, perfectly well (so far as I see), be translated into relations between beliefs and positive realities. "Propositions" are expressly devised for quibbling between realities and beliefs. They seem to have the objectivity of the one and the subjectivity of the other, and he who uses them can straddle as he likes, owing to the ambiguity of the word _that_, which is essential to them. "_That_ Cæsar existed" is "true," sometimes means the _fact that_ be existed is real, sometimes the _belief that_ he existed is true. You can get no honest discussion out of such terms.... _Aug. 15, 1908._