109 



For the fourth^ viz. Wind, this is used in great and 

 strong Mill-works J as for the grinding of Corn or Kape^ 

 &c. for sawing of Timber, or for draining of drowned 

 Lands, &c. But these Wind-Mills are liable to these 

 inconveniencies. 



First, they are only to be erected upon Hills, or open 

 plains, and therefore not useful in all places, 



Secondly, they are not without some danger of being 

 broken, and that not the Sailes only, (which though 

 frequent are mendable) but sometimes to be torn in 

 peeces, yea tumbled quite down by the violent and 

 suddain storms, which (though it happens but seldom) 

 yet in respect it may so be, and in respect of the great 

 losse, both of life and goods that necessarily foUowes, 

 there is sufficient argument to deterre any man from 

 building such Mills where others (lesse hazardous) can 

 be set up. Though not to neglect the use of them, 

 where no other can be had. 



Thirdly, such storms and gustie winds, though they 

 alwayes break not the whole Mill nor its sails, yet it 

 often compels it to stand still, or if it go it grinds 

 untowardly, sometimes too high, presently too low, and 

 is apt to heat, &c. And the same makes the deale- 

 boards that are sawed by each Mills so ruffe and 

 shagged, from hence also it is that in the drayning 

 works, of this nature, the tackling is very apt to break. 



Fourthly, Calmes are all the year long, and especi- 

 ally in Summer so frequent, that upon enquiry, I am 



