Apr. 2, 1910. 
My dear Professor Past:- 
I have "been trying to find that letter 
of Jr ours in regard to Pr, Brainerd ’ s lantern slides. I have 
looked everywhere that it seems at all likely that it might be, 
and mahy where it ought to be any way, but it fails to material¬ 
ise. It is either badly mislaid or lost. Phis fact undoubtedly 
accounts for my overlooking the matter so completely. Can you 
again supply me with the numbers of the slides you desire? 
I will try and not allow another mishap of this sort to occur 
again. 
Tory cordially, 
