the average of the results obtained by the
principal surveys executed since the great
Napoleon opened the dull eyes of Europe to
the inexhaustible treasures of ancient Egypt,
we find that the casing-stone is contained in
the line so measured just 365'25 times, and
consequently in the entire circuit (4x365^)
1461 times. Hence, as the form suggests the
Colonel Howard Vyse ...
Professor Smyth ......
Koyal Engineers, 1st survey
Mr. F. Petrie .........
Mean ............ 9140
This length differs therefore from that obtained by Mr.
Flinders Petrie. But, as for some reason, which is not
very clear, Mr. Petrie allows no less than 4A- inches for
each socket to "play," a most extraordinary condition,
surely, in the case of workmanship " equal to the finest
Work of the optician," it is difficult to place our usual
reliance on his accuracy. The average here taken, it will
be observed, of the whole results coincide precisely with
one of the measurements, and also with the mean of the
greatest and least.