359 
of Edinburgh, Session 1867 - 68 . 
and carried out by him both on a vastly larger scale, and with in- 
finitely more accuracy. 
Of course a line 60 miles long, is on a larger scale in mere 
length, than one side of the base of the Great Pyramid, only fth 
of one mile long. But then what is there similar, between measuring 
60 miles’ length of open country in the latter days of the world, 
and the building of a tianscendent monument in primeval times, 
with an excellence of masonry never since surpassed, and able to 
endure and bring down through more than 4000 years proof of a 
pure mathematical figure of important meaning, besides many 
physical symbolizations expressed in the size of the whole and its 
parts, as well as in their astronomical emplacement ? 
The two things are evidently of a totally different kind, and we 
should have nothing more to reply to under the head of accusa- 
tion (5), unless the Proceedings author had further propounded the' 
following depreciation of both the modern measures of the Great 
Pyramid’s base-side, and the said base-side itself ; in the follow- 
ing words (p. 256) : — 
“ Surely it (the base-side of the Great Pyramid) is a very strange 
“ standard of linear measure that can only be thus elicited and de- 
“ veloped — not by direct measurement, but by indirect logic, and 
“ regarding the exact and precise length of which there is, as yet, 
“ no kind of reliable and accurate certainty.” 
Now, the recorded and received measures of the Pyramid’s base- 
sides are, no doubt, as we have already seen at p. 351, sadly 
rough and rude ; but then they are in so far true measures, made 
by actual surveyors, French, British, and Egpytian, at various 
periods during the last 70 years, and not results ascertained by 
“ logic.” 
There is also, at present, as already shown at p. 352, some amount 
of reliable certainty as to the measured length ; and if any one 
desires to have that amount of certainty increased, “—let them, 
especially if they are rich men, adopt the necessary practical means 
for obtaining it : as indicated on p. 340. 
The Proceedings ’ author, indeed, intimates that the length of the 
Pyramid’s base-side cannot be obtained by the ordinary human 
means, viz., direct measurement, but only by indirect logic. How 
logic, whether direct or indirect, is to procure it, X do not presume to 
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