The Zoological Society of Philadelphia. 
Pai rmoun t Park . 
Philadelphia, April 5, 1900. 
Dear Mr.Hoopes- 
I an in receipt of yours of yesterday. I am, indeed, very 
much disappointed to learn that your brother has erected a new 
box in his yard, and am much afraid his doing so has materi- 
ally lessened my chance of getting the birds here for, as you 
know, my main hope depended on the birds from the box I erect- 
ed on your place last spring not finding quarters for them in 
their old locality and in consequence coming here where they 
had been so often last year that the place had become familiar 
to them. The fact of there being a new box in close proximity 
to the location of the old one will in all probability induce 
them to settle in it whereas otherwise it seems to me they 
would have come here. 
Now, I fear, all ray trouble and work is to go for nothing 
Very truly yours, 
Kob't D. Carson. 
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