Ree. May 30 

 Ans. June 13 



Jacobi 



Kologne, Aprili^ö, 1855 



Most Honored Sir Doctor ! 



While payinn- a Visit last week 1 to prince Salm on the Dycr, his 

 highness had the kindness to teil ne about your Melborn* s last let- 

 ter of Pebruary 25 of this year. It will be immediately explainable 

 to you, how nuch its content interested ne, if I teil you, that I 

 occupy rayseif for 15 years with the culture of cacti a>°d in this con- 

 text I entered into a very live interc hange of letters with the 

 prince. For this reason I hope you will f orgive rie.when I turn to you,, 

 an unknowrr to you, , taking your valuable time». 



I hope t however t that you will not consider ray letter unfrien^y,, 

 if I teil you, that it is primarly my interest in the published work 

 by youv which causes ne to write to you.. I see fron your letter, that 



prince* s Council , where tgg? best to turn in this connection. V/hat you 

 say in your letter about the insuf ficient nar^er of the illustrations 

 in the works of Pfeister and Otto,you speak fron my own soull,.. and in 

 the interest of the cause I wart to alert you about the polychrom: 

 Lithograph, in which. now in Germany and specially in Berlin astoni- 



shing/is being produced, and which! aecording to ny view is nore sui ta- 

 ble than any other kind' of printing for the illustrations of cacti*. 

 For a lonpc time I have not been able to comprehend, why one has not 

 taken refuge in that type of presentatiorr, and I would enjoy therefor 

 very much, if you would decide to process the drawings for your work 

 in this manner 1 . In a larger format, I saw the colored lithographs 



firätj in the work about the excavation of Herculareun, Ponpei and' 

 Stabian(?? E.D.) by professor W. Zahn, Berlin at Reiner, the first 

 edition of which appeared in 1828/29 and which has been continued' 

 since then without Interruption. Though oustanding results have been 

 achieved in this work,,it is in the art of color printing that 



used 



