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VHIS journal is published with the object of 
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in the particular science which it represents. 
As a subscriber to the journal, you are, we 
assume, interested in the extent to whic 
this can be accomplished, as well as in the 
perfection of its mechanical presentation. 
Each of these lines of effort is attended by a large 
outlay of money. It follows that the greater the income 
of the journal, the more nearly it can approach an idea 
attainment in both directions. A legitimate—and in 
some cases a preponderatingly large—source of income 
is advertising. 
We exercise a rigid censorship over advertising. 
We accept none that we do not believe to be thoroughly 
reliable. We consistently refuse any that might in the 
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of subscribers. 
In view of this, our readers may properly consult 
their own interests and at the same time render substantial 
assistance to the journal by patronizing the advertisers 
whose announcements appear in these pages, and PY 
mentioning the journal when so doing. 
The University of Chicago Pres 
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