6 



TREATISE 



tins climate. I have incrcafL^d tlicni from layers with cafe, and 

 they root inoz'e abundantly that way than the Englilh Elm. I 

 have alfo grafted them on Englifli, Scots, and Dutch ftocks, flic- 

 cefsfully ; and the niofb vigorous Ihoots have been from the 

 Dutch, though thefe on the Englilh icem to have a more elegant 

 form : Their leaves are braade-r than thofe of the Scots or Dutch 

 Elm, but fmoother, and of a much more lively green ; from 

 which clrcumflances, they feem to claim our encouragement. 

 Thefe trees produce plenty of feeds in Canada, from vdience 

 they may eafily be procured ; but from the length of the voyage, 

 and the delicacy of .the feeds, they feldom arrive frefli in Britain: 

 Therefore,, the readieft way to cultivate them here, is from layers, 

 or by grafting them ; and fuch plants will perhaps be hardier 

 than thofe raifed from foreign feeds. 



The Scots Elm maybe propagated to the fame advantage as 

 the other forts, by layers, and will produce abundance of roots 

 with greater facility, and in courfer land, than the Englilh ; but 

 as they generally yield plenty of feeds annually, which are 

 calily obtained, and which is much the cheapeft way of railing 

 large quantities of them, I fhall diredl their culture in that 

 way. 



The feeds of this tree commonly ripen from the beginning 

 till the middle of June, as the feafon is more or lefs forward : It 

 is eafy to difcover their ripenefs by the huflc being full and firm, 

 inclining to a tawny brown colour. Thefe feeds mufl: be atten- 

 tively look'd after, as they approach to maturity ; for when they 

 are fully ripe, a blaft of wind, or heavy rain, will drive them all 

 off the trees in a day'stime, as I have often experienced; and as 



