2 - Dr. E. . Purkinye June 22, 1875 



in contradiction to the idea spread in Europe, and I thus had to 

 justigy^my opiniorr thoroughlyi pull together historical and plant- 

 geographica! data, to prove, that in all the world forestation isr 

 dependent on rainr and not the other way around, . and that severe 

 fluctuations appeared in all centuries., My work appeared in a 

 Prämie Journal "Politic* , and will soon be out of print, whereupon 

 a separate printing will be published. I shall take the liberty f ,to 

 send this to you. In the raeantime I will send to you what T have at 

 home of the numbers in the article and those sheets of the separate 

 printing, which have been made.- 



As this questionn does also spit around in America, I will ask 

 you,to make to effort, to read through it,and to write your opi" - 

 nion to me. Having seen the beautiful i creations in the Smithoniarr 

 Institution, I believe, that the opinion would rise the least irr 

 America, that the forests create the rairr, .because in America the 

 clear dependence of proximity to the ocean shows itself, in the East 

 and Southest^from the West-winds- in the Northwest^ fronr Ba*w**% in 

 the Southwest evident (there is no verb here nor a Single comma,E.D.) 

 and even the influence of the larere lakes disappears against that 

 of the ocean. I know, that you are working with metereology, and 

 thus IT deviated f rom the .pines. This Spring I found in Bohemia two 

 in alVparts exactly\dif f erent- forms of pines.which show little dif- 

 ferences microscopically, so that I do not consider them species in 

 my sense. Nevertheless, they are specific forms and species in the 

 common- sense. The description and Illustration of them will' soon 

 be published.. 



This discovery tought me, and, in one way induced me,to stick- 

 to microscopic differences in grouping, and, on the other hand,,not? 

 to simply; eradicate the species of the systematicians.. 



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