TRANSLATION 



Würzburg, January 3, l8?9 



Respected Sirl 



Many thanks for your kind letter of Nov. 26th in which you call my attention 

 to a mistake in our text book, which actually is present insofar as mentioned in 



the text (p. 27), the pit Chamber ...to the right and left, whereas regarding 



B. in Fig. 25 it says from above to below; for Fig. C 25 the first expression 

 is certainly correct. 



Thank you also for the memorandum about Rhus. dendron, which 



interests me, unfortunately our specimen is still so young (because of the 



reloaation of the botanical garden), that the first cannot be seen yet. 



With friendly greetings, 

 Sincerely your 

 Sachs 



Translation of printed page: 



Mf. v Sachs demonstrated a number of plants from the division of the siphon- 

 ales and added thereto the remarks, that these as also the mucorales among others, 

 heretofore regarded as single-celled, that is as such plants, which consist 

 of only/cefl. This view is justified, if one wants to call a cell, one 

 originated from a cell through growth, surrounded by a cellular membrane and 

 Protoplasma containing body. If in comparison one observes that the growth of 

 the siphonales, mucorales among others is not accompanied by corresponding 

 cell-divisions as that of most other plants, but advances without these, then it 

 appears more natural to regard them as non-cellular plants, than as plants whose 

 inner cavity is not chambered with walls, whose protoplasma does not become 

 gathered and segmented around numerous Centra during growth. In this respect 

 the anucleate colloblasts (the siphonales, mucorales, and others) differ very 

 much from other so-called single-celled plants, as for instanee the desmidiales, 

 bacillariales and others, whose growth is accompanied by rhythraic recurring 

 di visions, only that here the part-cells immediately separate from each other and 

 can live as M single-cell plants". 



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