Another way.
There is another way whereby you may know whether water will be brought to any place or not, which in very large distances ought
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There is another way whereby you may know whether water will be brought to any place or not, which in very large distances ought
to be considered. Take the distance between the Spring head and the place to which the water is to be brought, which multiply in it selfe, adde the product thereof to the Square of the Earths Semidi∣ameter, viz. to the square of 3436 4/11 Italian miles, then out of the product thereof extract the Square Root, and then from that Square Root take 3436 4/11 miles, the remainder is the difference between the line of levell, and the water or circular levell.