Ree, Mar». 9 

 Ans, Nov. 15 and 

 Jan. 18,1853 



Dyck Febr. ,? §i 1852 



Your Well borrr f s 



kind letter, posted in St. Louis on the 21st (Dec. ? 9 E.D.)' 



of the pevious year, arrived here on Jaruary 15 t a^d was reeeived 



with the greatest pleasure». At the distaroe, which separates us„ eve- 



ry lack of news is disquietin^r, and I was very glad, to see fron your 



letter, that you are still always well. I tefck active interest in the 



loss of a lange part of your cacti t : Your culture seems } in facity 



to be somwewhat too rough, and it seems to me t that all cacti are 



better off in Sunner in the open (without glass covering)! in a place 



protected from the noon sum. In Winter-, the dry teraperature (sic,E.D.) 



of a Ii ving room is certtäinly damaging for themr, and, if ttbere 



is no other way, it is better to have double Windows , betweerr which 



Penetration- by frost can easily be averted : by the way, Mr. Potts 



native 



teils us, that 1 near Chihuahua all/cactr are covered with snow. He 

 belleves, that these species could stand in. England in the open,, 

 which I don f t believe however because of changing temperaturesr 

 and the lack of dry nountain air. J^|an. barbata I had only as snall 

 seedllng plant s, which got lost. Of '". nacroneris I have only one spe- 

 cinen; but of Op . seti spina I have a supplyv; and ca^ give sone to you.. 

 I would like to send you snall shoots of all ny Qpuntiae ( so as not 

 to need a large case) , that you could recognize new species easier.. 

 Culture of Op, is dif ferent fron other cacti; they nust stand, in the 

 op-en in Sunner-, and in Winter they nust not be allowed to *ret quite 

 dry. The cylindraceae are the most tender; they become easily dry,. 

 and rot. Your Op. .. f rutescens I have, and , though it cones close to 

 Op. gcracllis, I have aeeepted the species; but as to Op. va/rlnata 

 there was no dif ference (as far as I renenber) with frutesoers,. 

 and I believe, Your Wellborn to have written to n e , you were not" 



