OAKES AMES, director. 
BOTANIC GARDEN OF HARVARD UNIVERSITY, 
CAMBR1DCE, MASS. U.S.A. 
f^VVv^- 
May 5th* 1922. 
My dear Mr, Powell: 
I am sending to-day a copy of Kldg©- 
way’s book on color standards, please accept this with 
my best wishes, I hope it will solve erne of your prob¬ 
lems and be an unfailing source of amusement* 
Your much valued package of orchids 
reached mo on S&t’oe&ay, Is it necessary to inform you that 
this package had all tho pleasure In it that any human 
being ought to expest? I examined the specimen of 3pidend- 
rum Kadlkoferianuia v^ith keen interest. How do you separate 
this from E, volutura Lindl? I should say that the lines 
are not only too closely dravaa* but that your friend Schlech- 
tsr has overlooked the earlier specimen, fhsra ie no doubt 
in my mind but that your material is the same as that on 
which Sohlechter depended for the description of the spec¬ 
ies. I have read what he has to say about it with deep in¬ 
terest, and ray reason for suspecting that he overlooked 
tho lindley plant is based on the fact that he did not re¬ 
fer to it in his notes. Ho surely would have dono so in 
those comparisons which are based on a review of near allies. 
When I visit £ew I will look again at the Lindley type and 
verify my notes. 
I have found ay old Leita microscope 
and the o&mera-luoida that belongs to it. I tried it out 
this afternoon and found that iy’waa in perfect oondAtion. 
I may send this equipment to you with a few pages of in¬ 
structions* before I depart for Uuropa, 
A few words about your use of atrlos in 
mounting: ho not anchor leaves or flowers by stipe that de¬ 
pend on security in adherence to plan# parts. The strips 
should always have the fra® ondoattaohod to the paper• It 
is better to ua® shorter strips. Although it is perfectly 
all right to use long ones if you wish when sticking town 
several as tarns the short strips for esch“part 
look better* 
If la certainly djlightful to have 
an abundance of supplementary flowers in pocketsl fhey mro 
the mounted material when it is nocaseary to make examin¬ 
ations. 
If there is anything I can do for you 
before I leave on Juno 28th you must hasten your requests. 
It has been a pleasure to help you. 
Yours faithfully, 
