[3.] Sidenote unclear:
[4.] Reading doubtful; may be intended for “Enius” (modern Aenus?).
Now the aggregate of the quadrate from A B a hundred, and B G a 1000 will bee 1010000, unto which the quadrate arising from A G must be equall according to the 47th proposition in the first booke of elements. Therefore the whole line A G is somewhat more than 104, and the distance betwixt H A must be above 4 miles, which was the thing to be proved.
Cælius (Sidenote) Progym. 1.
the noble Tycho (Sidenote) l. 20. c. 5.
[7.] The first paragraph on this page is very unclear. The page image is shown in full because in other respects this is a typical page. If there were sidenotes, they would be printed in the wide margin, outside the line.
