Chap. XL Of Blight. 153 



Number of VefTels eaten, and as the Infects happen 

 to come earlier or later-, for fometimes they come fo 

 late, that the Grain is fufficiently fili'd with the faid 

 milky Juice before the VefTels are eaten ; and then, 

 tho' the Straw appear thro' a Microfcope to have its 

 VefTels very much eaten and torn, and to be full of 

 black Spots (which Spots are nothing elfe but the 

 Excrements of thofe young Infects), yet the Grain is 

 plump, and not blighted, there being an Obfervation, 

 That the early fown Wheat generally efcapes this 

 Blight. And it has been feen, where one Part of a 

 Field is fown earlier than the other Part, without any 

 other Difference than the Time of fowing, that the 

 Grain of the lateft fown has been much blighted, and 

 the Grain of the earlier has efcaped the Blight, tho* 

 the Straw of both were equally eaten by the Infects. 

 Hence it may be inferr'd, that the Milk in the one 

 had receiv'd all the Nourifhment neceffary to its due 

 Confiftence, before the VefTels were deftroy'd ; but, 

 in the other, the VefTels, which mould have conti- 

 nued the Supply of Nourifhment for thickening the 

 Milk, being fpoil'd before they have finifh'd that 

 Office, it remains too thin -, and then the Grain, when 

 it hardeneth, fhrinks up, and is blighted -, yet the 

 Grain of one and the other are equally plump until 

 they become hard : The Difference therefore is only 

 in the Thicknefs of the Milk, that in the blighted 

 being more watery than the other. 



The chief Argument to prove, that thefe Infects are 

 brought by an Eafl Wind, is, that the Wheat on the 

 Eafl Sides of Hedges are much blighted, when that 

 on the Weft Sides is not hurt : And as to the Objec- 

 tion, that they are bred in the Earth, and crawl thence 

 up the Stalks of the Wheat, becaufe fome Land is 

 much more fubject to produce blighted Wheat than 

 other Land is •, perhaps this Difference may be chiefly 

 owing to the different Situation of thofe Lands, as 

 fhey are opposed to the Eaft> or to the Wefi. 



Another 



