Jacobi 



- 2 - 



April, £6, 1855 



it excells in the presentation of architectural documentatiorr of the 

 antique wall-paintings. Landscapes as well as portaits are being litho- 

 graphed.a^d that to such perfection, that nothing is left to be wished», 

 and thus cacti can also be rendered in color printing to complete sa- 

 tisf action« 



The way the prince has his Me sembrianthemuns and Aloes represen- 

 ted, does suffice. sonewhat', but not to the degree» when one sees the 

 entire plant- in its color n-lory before one's eyes. I also believe al- 

 most, that the costs should not be signif icantly higher than if one 

 takes recourse to copper- ot steel- enprravim». 



In Berlin the best of color printing is accompli sheÄ by the Insti- 

 tute of Winkelnann and Sons, however, I believe, that good can be accom- 

 plished also in Düsseldorf at Arenz & Co, and in Bonn at Henri &. 

 Cohen. .The choice of the last naned firm would have the advantage, that 

 Mr. Henri himself is a botanist.. He cooperated in earlier times hinrself 

 on the prince' s works and could therefor best supervise the represen- 

 tation of the plant s true to natura»- Should you decide for the color 

 printing-, I would take great pleasure to pursue the cause to the best 

 of ny ability. . It is a real consolation for all friends of cactus stu- 

 dy, that a man with your knowledge enbraceS thi s branch of botany, which 

 in many ways still lies in the dark. Only a man of stature, who live® 

 in the homeland of the cacti and has occasion to study them in their- 

 habitat, can solve the many still existing doubts about them.. If I 

 were independend and had the necessary wherewi thall , I would have 

 undertaken long ago a trip to the New World, only with the intent to 

 study the cacti.. I must not tie myself to that favorite idea, and I 

 must be satisfied to study, what is being sent to us from there.. 

 Throuerh your efforts we will at leajt achieve, to get clarity about the 

 plants occuring in your ter^itory^, and thus achieve at least a par- 

 tial check against the locally epidemic creation of species.«. 





■ ^ ^ LJ 





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Missouri 

 Botan ICAL 

 Garden 



