18 
?55 Comm or. wealth Avenue, Boston, Mass* 
May 2Bd, 1922* 
My dear Mr, Powell: 
Tom Barbour just came in to give 
are 
me a. gloving account of the work you/ doing. He was 
deeply impressed by what you have done and most en¬ 
thusiastic over the opportunities that lie before 
you. He was full of regrets because he did not know 
before starting on his trip to the south that you 
would be in a position to receive representatives of 
the numerous orchids he encountered while he was in 
the field. 
In your last letter you refer ’od 
to the use of a. camera lucida in connection with 
your studies of orchid flowers. For the smaller 
species it might be a good plan to try the camera 
lucida if you are endowed with capacity to draw in 
details after the outlines and salient structures are 
indicated. I would be pleased to send you one if 
your simple-microscope is adapted to the attachment 
of a standard camera lueida. It would be a pleasure 
to do thiH$- 
Barbour seemed to think that you UrT/vJL^ 
