384 Wisconsin Academy of Sciences, Arts , and Letters . 
CHAPTER II. 
INTERROGATIVE AND OTHER THOUGHT COM¬ 
PARED. 
Each Tcind o f thought may vary in extension. 
By this I mean, not only that, in general, thoughts have dif¬ 
ferent numbers of constituent ideas, but also', in particular, that 
every kind or grade of thought to be examined may so vary ‘with¬ 
out becoming a thought of another kind. That is, I wish to 
emphasize the distinction between mere difference in size and 
difference in, kind. T'o> illustrate, “Brown is certainly very 
honest” stands for, so to speak, a bigger thought than “Brown 
is honest;” but, for my present purpose, these two' thoughts will 
rank as of one kind. On the other hand the thoughts expressed 
by “Brown is honest” and “Is Brown honest ?” might seem, to 
a hasty view, to differ little, if at all, in size; but I shall rank 
them as very different in kind. 
Each hind of thought examined in its minimal form *. 
By this I mean that, for the sake of clearness and convenience, 
I shall deal with, thoughts containing only the ideas required 
to make each one of them a thought of a particular kind. For 
instance, “Brown is honest” will suit my purposes better than 
“My friend Brown is undoubtedly a very honest gentleman.” 
The kinds of thought to be examined under the following A, 
B, O and D, may be regarded as interpreting respectively the 
kinds of expression illustrated in connection with those letters 
on p. 354. 
a. the conception (expressed by a suggestion). 
By this I mean the lowest grade of thought—such thought as 
would be thought no longer, if deprived of any element. This 
I offer to attention merely as a convenient background on which 
to project the judgment. 
