Oou men was employed in building tho
pyramid evtry three months, to that there
was plenty of labor to conduct all these ex
periments". Af'er getting the 1 ase stones
laid the ollur layers of s:ur:c could be put
on carrying up the shaft that fcnd been
sunk. Tins would terminate one of the
faces, and to continue it higher it would
have to turn or branch cut in another direc
tion. A reflected ray of light would give
them the means or turning the shaft at right
angles. Thus wa3 cos'pletej the iusiru-L-tent
for the niea-urir.g of the exact time,
and its large galiery into which the interior
pas-age wide-reel out wou'. l be useful f r
o'oservi!!g th-i sta-s pnsimg over i:, ana.
Icing very deep, the stars could be seen in
the day time, uu J o'erved not enly by one
ervi r but by many, who could ta,;e tue
time of the stars southing at the sar.se mo
ment, and get rid of what is called 'per
sonal cepTaii'in" or diUcrei.ccs in the roadi-
aess of u:itcrcjt o'jsoivcrs.
r.rnnrkjl.' SnjrrcitT of a Cloe.t.
