METHOD OF PACKlNa PLANTS FOR EXPORTATION. 339 



shut up, and held shut by two small bolts. The end of the 

 frame E is then raised up, so as to make the short end the 

 lowest, and the cylinder runs down on its two wheels D 

 over the trough B, till it is stopped by two iron prongs fixed 

 on the end of the frame E; the cylinder is then suft'ered to 

 fall down into the trough, and the potatoes^ &c. are washed 

 by turning it round by its handle K. « is a plug to let out 

 the foul water. 



Any person who has seen the laborious and imperfect Advantage;, 

 method of washing potatoes in a tub, as practised in Lon- 

 don, will be convinced of the utility of this machine, and 

 of its preserving the potatoes from being water soaked and 

 spoiled, which is the case when they are long immersed in 

 water. 



IV. 



Method of packing Plants and Trees intended for Expor- 

 tation, so as to p)reserxie their vegetative Powers for 

 tnani/ Months : by William Salisrury, of the Botanic 

 Gardejis at Brompion and SloaneStreet *. 



HEN I had the pleasure of seeing you last Spring, I Discovery of a 



mentioned a supposed discovery I had made of a substance, ^",f'^"'^^ ^^^' 

 ' ^ J _ ' will preserve 



that would preserve trees and plants for a considerable time plants in a 



in a growing state, when packed up in close boxes: and^J^Jj.''?S ^'^^^^^ 



that by this method they might be sent abroad to great 



distances with more success and less trouble than in any 



other. I now take the liberty of troubling you with the 



results of several experiments, which I have since made; 



being certain, that a greater demand will be found for the 



various articles cultivated in this country, and the persons 



who are engaged in that trade benefiUted, when it is publicly 



known. 



A box I have now sent, marked No. 1, contains speci- Trees packed in 

 mens of tulip trees, and liquid amber trees, which ^vero'^ ^"^ °'*^"'^^*' 



* Trans, of the Soc. of Arts, Vol. XXVII, p. 40. Twenty 

 guineas were voted to Mr. Salisbury for this communicatioji. 



Z 2 packed 



