334 'POWER OF MOVEMENT [l88o. 



copies were disposed of at Mr. Murray's sale. With regard to 

 it he wrote to Sir J. D. Hooker (November 23) : — 



"Your note has pleased me much — for I did not expect 

 that you would have had time to read any of it. Read the 

 last chapter, and you will know the whole result, but without 

 the evidence. The case, however, of radicles bending after 

 exposure for an hour to geotropism, with their tips (or brains) 

 cut off is, I think, worth your reading (bottom of p. 525) ; it 

 astounded me. The next most remarkable fact, as it ap- 

 peared to me (p. 148), is the discrimination of the tip of the 

 radicle between a slightly harder and softer object affixed 

 on opposite sides of tip. But I will bother you no more 

 about my book. The sensitiveness of seedlings to light is 

 marvellous." 



To another friend, Mr. Thiselton Dyer, he wrote (Novem- 

 ber 28, 1880):— 



"Very many thanks for your most kind note, but you 

 think too highly of our work, not but what this is very 

 pleasant Many of the Germans are very contemp- 

 tuous about making out the use of organs ; but they may 

 sneer the souls out of their bodies, and I for one shall think 

 it the most interesting part of Natural History. Indeed you 

 are greatly mistaken if you doubt for one moment on the very 

 great value of your constant and most kind assistance to us." 



The book was widely reviewed, and excited much interest 

 among the general public. The following letter refers to a 

 leading article in the Times, November 20, 1880 :] 



C. Darwin to Mrs. Halibtirton* 



Down, November 22, 1880. 



My dear Sarah, — You see how audaciously I begin ; but 

 I have always loved and shall ever love this name. Your 



* Mrs. Haliburton is a daughter of my father's early friend, the late 

 Mr. Owen, of Woodhouse. 



