Brown University, 
Providense* R« I«» 
October 2, 1925. 
Mr. Edward B. Chamberlain, 
18 West 89th. Ctreet, 
lew York City* 
Bear Chamberlains 
I have your letter of Sopte.ber 30, relative to tie water- 
glass, and wish to thank you for the same. I think 1 will try 
it out* 1 am having a oopy of Bean Burk’s letter made and ara 
returning herewith the original letter to you. 
Borne of the photographs you mention were taken with a color 
screen and others were not* I do not now recall just which views 
you refer to but, in all probability, those taken with the screen* 
the paper that I used Is Bo. 1 glossy Velox, a grade of Volos, that 
has quite recently been put on the market. 
Cordially, 
J. mi COLL IIS, 
JVC/EBB pathologist. 
Enc.-l. 
