Dr. West's Account of Gaj Ilcad. 14 7 



lead to a solution of the above questions. I therefore b 



leave to communicate an 



o 



y instance, related to 



me by a gentleman of undoubted veracity in my neighbour- 

 hood. The account is as follows : On going into a cellar 

 which he used for the preservation of roots in the winter, 

 and kei^t close and dark, he discovered, in the south cast 

 corner, a very small hole, which admitted a little light; and 

 that a vine proceeding from a potatoe, accidentally left in 

 the north west corner, had pursued a direct course to the 

 aperture in the wall; and after running twenty feet on the 

 cellar floor, ascended the wall, and without any deviation in 

 its whole course, went out at the hole. .This is the strong- 

 est instance of the effect of light on the growth of i)lants, 

 that has fallen under my observation; and being so extra- 

 ordinary, will, I hope, apologize for this communication, if 

 it produces no other effect, than amusement to the curious. 



I am your obedient, 



humble servant. 



J. WAEEEN, 



To the Ajierican Academy of Aets and Science. 



XIX. A Letter concerning Qwj Head. From the Reverend 



SAMUEL AVEST, d. d. f. a. a. 



Dartmoidli, Ocioler 9th, 1786. 



SIR, 



OUR Excellency undoubtedly remember^/ that I was 

 appointed by the Academy to be a committee; to 

 examine the mineral productions of Gay Hcad^ and to sub- 

 mit 



• 



