- .r 
that you are in a fair way to determine just which 
alkali is the mc3t injurious from your experiments on 
them separately. 
Mr. Oberholser says that it is very desirable to 
have specimens of Cormorant from the region you are 
now in. From the Mississippi Valley west the inland 
breeding form of Cormorant ha? never been identified 
and as there i s known to be a colony at Great Salt 
Lei® you should collect specimens if possible. 
Wishing you continued success in the work, I remain, 
Very truly yours, 
Acting in Charge, 
Economic Investi 
igations. 
