) 



522 



PRODUCTION OF 



Sect. XVllI. 2. lo. 



boring them 



and plugging up the end 



by joining thick board 



together by means of paint and flannel, or caoutchouc, fo as to con- 



flru^t long fquare wooden troughs filled with air, perhaps eight 



nche's diameter within, and twenty or thirty feet long. If the 



number of 

 r. and laid 



junft 



f thefe could be rendered water-tight, and a 



fuch hollow 



ks could b 



c 



hained 



fely 



O 



h 



crofs-wife three or four times over each other, they might carry very 

 large burthens, not eafily to be deflroyed by ftorms, or funk by can- 

 non (hot. 



10. Another difference of the longitudinal fibres of timber confifts 

 in their degree of elafticity, a circumftance of much greater Confe- 

 quence to our anceflors in refpecl to the art of war than to the pre- 



fent 



£) 



P 



^ 



as their bows for d 

 for throwing ftones 



to"*0 



d tb 



beams of timber forcibly be 



depended on the recoil of rods 

 curve. For the conftrudioa 



of bows the yew 



was ufed in this ifland, and was pi 



f 



ed in church-yards, probably for the purpofe of fupplying the youth 

 of the parifh with bows, that they might become expert in the ufe 

 of them ; many of which have acquired extreme old age, and remain 



this day 



1 1. 



Wh 



defigned to be tranfplanted for the pu 



pofe of ornamenting a pleafure-ground, it is proper to dig 



nch 



nd them two or th 



h 



feet deep in the early 



%> 



many new roots will (hoot from thofe 



hich h 



th 



ends cut off, and thus the ball of earth will be better held tocreth 



tree is removed 



the fucceeding autum 



dth 



previoufly produced fo many more fine abforbent radicl 



hen th 

 by h 



will be more certain to grow in its new fituation. 



Hence when new grafted fruit-fcions on young flocks are deficxned 

 to remain a {^^ years' in the nurfery, before they are defio-ned for 

 fale, fome provident gardeners I am told tranfplant therh every two 



years, that the root-fibres may be more numerous 



a 



fmall 



com- 



pafs. 



I 



\ 



A 



