•J 2. 



dl 



V 









; inju. 



:^tah] 



e 



'II Oil 



) thefe 



I 



w 



'^'J 



tcrial, 



■liethe 



r 



' in :U 



fore ibe 

 or glue 



^ alone 



led and 



...J 



jbferv: 



up 



the 



1^ 



F 



mixed 

 - iiifeas 



if we 



t, 



.t 



demy 

 ;ck-li^« 

 i; ill vva- 



CCiS, 



t 



did no^ 



3 



f^ 



U.it 



I *- 



lis \^' 



f. 



ito' 



Sect. XIV. 3. 2 



OF PLANTS. 



^53 



> 



out fhells 

 firft with 



d might be worthy 

 ion. left it fliould i 



on trees at 



1 by injedling it 



them ; as it is probably 



getable acid chiefly, with a fmall portion of elTential oil, which 



difTolved, or mixed with the water, by agitation. See No. 3. 5 



ofth 



Sea 



Previous to the pullulation of the bud 



alfo believed to be of 



^ fervice to water wall-trees with lime-water, or with foap-fud 



"to either of them 



perhaps with th 



ddition of fome pot-afh 



make a more cauftic ley, fuch as is recommended for fteeping feed 



wheat : but this with caution, as I h 



known a folution of hepar 



fulphuris kill the branches of a tree, which 

 as well as the infeas, which were upon 



ere moiftened with it, 

 Nor am I certain that 



will anfwer the purpofe from the obfervations I have heard from 



thofe, who have tried 



The e 

 their ufe 



{Tential oils are all deleterious to certain infea 



d hence 



the vegetable economy 



, being produced in flowers 



leaves to protea them from the depredations of th 



mies 



One of the elTential oils, that of turpentine, is recommended 

 W M. de Thoffe for the purpofe of deftroying infefts, which mfed 



both vegetables and animals 



attacked by multitud 



f fm 



Having obferved that the trees wer 

 all infeas of different colours (p 



pucerons), which injured their young branches, he deftroyed them 

 all entirely in the following manner. He put into a bowl a few handfuls 

 of earth, on which he poured a fmall quantity of oil of turp 

 then beat the whole together with a fpatula, pouring on it 

 it became of the confiftence of foup ; with this mixture he moiftened 

 the ends of the bra 



till 



d both the infeas and their egg 



deftroyed, and other infeas kept aloof by the fcent of the turpent 

 He adds, that he deftroyed the fleas of his puppies by once bath 



m in 



warm water impregnated w 

 ^'Agriculture, An. 1787, Printemp. p. i 

 1 fprinkled fome oil of turpentine by 



Zz 



th 



f turpenti 



M 



9 



o 



f 



brulh on fome 



branches 



N 



