[ 204 ] 

 The power of this crane is that of a wa- 

 tlier wheel, contrived in a very fimple man- 

 ner. The bed: way of explaining it will be 

 by a little {ketch, Plate V. Fig. 3. But 

 remark, that I only draw this from idea, 

 the cavern in which the wheels work being 

 under ground, and below the furface of the 

 iubterraneous canal ; and all the light I had 

 was that of a farthing candle. I offer it 



Mr. Baylcy explained the culture of the new 

 potatoe to the Society in the following letter. 



Hope, near Manchefter, Nov. 13, 1769. 

 To Richard Townley, efa; of Belfield, Prefident 

 of the Agriculture Society, in the hundred of Sal- 

 ford, in the county palatine of Lancafter. 



Dear Sir, 

 As a member of a Society, which in a great 

 meafure owes its rife and prelent flourifhingftate 

 to your patronage, I beg leave, in this public 

 manner, to inform you, and the Society in gene- 

 ral, that I have this year raifed an uncommon 

 kind of Potatoe, which, from its amazing in- 

 creafe, well deferves the attention of the public. 

 The mod authentic accounts I have yet been a- 

 ble to procure, fay, that this kind of potatoe 

 originally was brought from North America; that 

 it was firft cultivated in England, laft year, by 

 one Mr. Howard, a gentleman of Bedfordshire ; 

 and that its increafe is eight times as great as that 

 of the common potatoe. If fet at confiderable dis- 

 tances, they grow to an enormous fize, and may 

 rather be called a congeries of many, than one po- 

 , and are too large either to roait or boil for 



the 



