lations are to be constantly assured. 
J have been thinking again about the system that underlies our 
sequence- and acceptance- cf genera. While* T agree* with you in the main 
and fee] that your scheme- is the result, of searching' study and pro¬ 
longed observation T cannot help but believe that it would be a mis¬ 
take to let this system pass as the expression of opinion of a single' 
author in a joint and lengthy undertaking 1 . Therefore*,* T suggest that 
we* bold back this part of the work until such time as it is possible* 
to publish it as the ripened product of our combined thought. Pending' such 
an issue it would be well to let me know what, you think of the new genera 
recently proposed by Prittfcn, Small and Killspaugh. 
till you please let me have a reply to this letter as promptly as 
possible*. While 7 await a reply ‘I intend to' finish my paper on Pogbnia 
and tp prepare the joint publication on T riphora. 
7 have just been vcrkinr or a Guatemala species of Praehystele. h'y 
analyses indicate- close- affinity with F. g'uyanensis. I’ cannot find any 
characters on which to separate it. in this regard I would welcome a 
tracing cf P. Pfig^osii from Costs Pica. 
This letter has been interrupted by 'very exciting circumstances. On 
Saturday night, torrential raids came- upon us and six inches of water fell 
in 'about twenty-four hc-urs adding to an already heavy shower. As a result, 
my big' pond- began to rise- in an alarming' fashion and T had to give most 
of rry attention to engineering feat6y one of which,- the- cutting’ of an 
outlet for the- rising' waters., - resulted in a torrent that promised to wash 
away all restraints before- I could check it. All is wellapain and T air* 
finishing' this long' letter with a very g’reat feeling' of relief. 
T wish I could see- more settled conditionsl^h the* world. Fobetitees 
T wonder if the years left t.o me will witness a return of that stability 
of affairs that we- refer tp now as prewar conditions] 
Yours very sihceeelyy 
