2 - Dr. E. Putfkjm^fiL Sept. 13, 1876 



I do not have on hand any spontane ous (sie, E.D. ) american oaks, 

 to make a deci siorr, if the castanea of the gardens ls realy t hat, which 

 is named thus in America, or, if it may be perhaps an asiatic species,, 

 against which though f^rrnicYT^ands) the luxuriant growth, the hardiness 

 in out climate (acorns it has not yet) . If it is an araerican species*, 

 then it is certainly a good one, stand ing entirely isolated. Perhaps 

 Michauxii Nuttt is that, which is named in Europe generalis Prinos . 

 and Prinos Lin. is the Castanea , because you draw monticola as a syn - 

 onyme of it». 



I mailed und er book-post a polemic article, that you may see, why I 

 am not raaking progress with the pines. You will find in it a listing of 

 my works in this year.. I am extracting just now from the Smithonian In- 

 stitution the rains of North America by John Henry. I do not know, if 

 there are errors in printing, or calculations from General information, 

 which are not given, but the sums of sinsrle years show differences in 

 the median, i.e. they do not coincide with the general mediana, and I 

 will have to calculate the median again from the sums of the Single 

 years. The specific months of all Single years are not given, and, thus,, 

 one does not know, where the mistake is. The monthl^ medians agree with 

 the yearly totals for specific localities? but the sums of the indivi- 

 dual years do« not asrree with the median.. In Dove's Ree:en von Deutsch- 

 land (Rain in Germany, E. D. ) all months of all years of Observation are 

 gi^en , not the sums of the individual years, which I had to calculate 

 myself. Thus I f ound ri^ht away the errors in the General median of the 

 seasons or years. . 



The individual essays, which are mentioned in the article, I hope 

 to send you soon as well as other articles : Age of farming, Age of the 

 Human Race, and the work about the red and green- coned pines. It will 

 be published in the Bfc*t*t 8c Jagdzeitung (Forest and Hunt ing News 91 E.D.) 

 and the illustrations are being made in Frankfurt. But, I have not yet 



