356 GEOEGE JOHN EOMANES 1893 



Dr. Sanderson writes : 



Friday, November 17. 



My dear Romanes, — There was a rather interest- 

 ing discussion at the E. S. on your paper about the 

 fresh experiments with seedlings. It was objected 

 that there was no evidence that the effects were 

 not due to one-sided drying of the stems of the 

 seedlings, and wanted to know whether suffi- 

 cient precautions were taken to guard against this. 

 I suppose that he meant heat effects. I said tha., 

 under the conditions of this experiment, I could 

 not see how any ' drying effect ' could possibly take 

 place. 



My suggestion is that it would be worth while 

 to add a note, if you think of the impossibility of 

 any effect, excepting a light effect, being concerned. 

 I asked Foster just now, and he agreed with me 

 that it would be useful. I ought to add that it 

 was admitted that the observation was a new one 

 which promised to have very important bearings. 



I am writing this in great haste. I trust that 

 you are enjoying Costebelle. 



Very truly yours, 



T. Buedon Sandeeson. 



At this time Mr. Romanes had a very interesting 

 correspondence with the Rev. G. Henslow, on the 

 subject of the direct action of the environment on 

 plant structures. 



Ealing : October 19, 1893. 



Dear Mr. Romanes, — If you are in town on 

 November 16, I should be very glad indeed if you 



