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25 th January, 
2 • 
Dear Sir, 
In accordance with the request made in your 
letter of Dec. 28, 1 93 1, I have posted this day to your 
address two parcels containing 328 specimens of the 
Urticaceae-Procrideae from the herbarium of this institu¬ 
tion. For the benefit of the monographic study I have 
included in the parcels all the material of the genera 
Elatostema, Elatostemoides, Pellionia, Polyclroa and 
and Procris, even all the authentic specimens, on the 
condition that they will be always under your care and 
that they will be returned to me directly you have 
finished with them. 
Please inform me as soon as you receive the 
parcels. 
Yours faithfully, 
Director of Gardens ,S.3. 
Dr. Hubert Wirckler, 
Botanic Institute, 
Breslau University, 
Breslau, 
Germany# 
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