K 
Oct., 1911 
Dear sir: 
Replying to your communication of Oct. 2nd, 
4 t 
I am authorised to explain that the 6 x 8 ortho. § and D 
25 plates were ordered from J. L. Lewis, 379 6th Avenue, 
Hew York City. 
On the receipt of this order, however. 
Mr. Lewis replied that the plates desired were not in stock 
and that it would take three weeks to furnish them. For 
this reason the seed ortho, plates were substituted, as you 
were in urgent need of them. 
Very respectfully yours, 
ri. W. DORSET 
Chief Clerk 
professor H. Plttier, 
Culebra, 
Canal Zone. 
