By Dr. Noeiiden. 



14 



observation of our President's, who remarks,* that " it is the 

 transition from cold to heat, which usually destroys vegetables. 

 To which may be added, by way of illustration, the follow- 

 ing statement, made by a foreign writer,+ who speaks thus : 

 " It is remarkable, how much cold and snow the common 

 Lemons and Oranges will bear, at Rome, provided they are 

 planted in a sheltered situation, not much exposed to the sun. 

 Thus I saw, in the two winters of 1805 and 1806, under my 

 windows, on Monte Pincio, three standard Orange trees, in 

 the open ground, heavily covered with snow, for more than 

 a week. The green leaves, but still more the golden fruits, 

 nearly ripe, looked singular, but beautiful, amidst the snow : 

 neither fruits, nor trees had suffered, being in a sheltered place, 

 while many branches and leaves of other trees of this kind,which 

 were exposed to the sun, turned black and died, rendering tlie 

 whole tree sickly." It hence follows that the operation must 

 be performed, before the atmosphere becomes too warm, 

 and, by all means, before the rays of the sun can reach the 

 frost-bitten parts. The rule, therefore is, that it should, if 

 possible, be done before the sun rises. Mr. Harrison re- 

 gards this process of watering as indispensible to the success 

 of his fruit : situated as his garden is, he says, he should 

 have no means of preserving the blossom, without it. To 

 himself, he declared, it had always answered : and he men- 

 tioned a gentleman in Yorkshire, who, having adopted it, 

 at his recommendation, had derived from it the same 

 advantage. If this be so, the practice is certainly entitled 



* See Vol. II. page 305. 



f Dr. Sickle r, in his treatise on Orange and Lemon trees, written in Ger- 

 man, with the title : Der Volkommcnc (Jrct/igeric Gartner, page Q. 



