W. B. 4. 
\ySX 
There is another very much less important reason for not in¬ 
dexing subspecies as trinomials. It is this*. Printed as tri¬ 
nomials , they take up much more room on the line and consequently 
turn more lines, increasing the size and cost of the Index. This 
to.me, however, is a trivial objection. The main point is that 
an index is not a classification . It deals with names which are 
matters of fact, not with rank , which is a matter of opinion. 
I had intended to ask you to send this letter to Batchelder 
and Faxon, but I think I will send it in duplicate in order to 
save time, and hope you will have an opportunity to talk the matter 
over with them. 
Very truly vours. 
