+---------+----------+--------+--------+--------+ | R. B. |PLETHRA OR| | | | | CUBITS. | SECONDS. |STADIA. |MINUTES.|DEGREES.| +---------+----------+--------+--------+--------+ | 60 | 1 | | | | | 360 | 6 | 1 | | | | 3600 | 60 | 10 | 1 | | | 216000 | 3600 | 600 | 60 | 1 | |77760000 | 1296000 | 216000 | 21600 | 360 | +---------+----------+--------+--------+--------+ Thus there are seventy-seven million, seven hundred and sixty thousand R.B. cubits, or two hundred and sixteen thousand stadia, to the Polar circumference of the earth. Thus we have obtained a perfect set of natural and convenient measures which fits the plan, and fits the circumference of the earth. And I claim for the R.B. cubit that it is the most perfect ancient measure yet discovered, being the measure of the plan of the Pyramids of Gïzeh. The same forgotten wisdom which divided the circle into three hundred and sixty degrees, the degree into sixty minutes, and the minute into sixty seconds, subdivided those seconds, for earth measurements, into the sixty parts represented by sixty R.B. cubits. We are aware that thirds and fourths were used in ancient astronomical calculations. * * * * * The reader will now observe that the cubit measures of the main Pythagorean triangle of the plan are obtained by multiplying the original 3, 4 and 5 by 360; and that the entire dimensions are obtained in R.B. cubits by multiplying the last column of connected natural numbers in the table by eight,--thus-- R. B. CUBITS. DC 3 × 360 = 1080 CA 4 × 360 = 1440 DA 5 × 360 = 1800 or, NATURAL R. B. NUMBERS. CUBITS. DC 135 × 8 = 1080 CA 180 × 8 = 1440 DA 225 × 8 = 1800 &c., &c. (_See Figure 5, p. 18._) According to Cassini, a degree was 600 stadia, a minute 10 stadia; and a modern Italian mile, in the year 1723, was equal to one and a quarter ancient Roman miles; and one and a quarter ancient Roman miles were equal to ten stadia or one minute. (_Cassini, Traite de la grandeur et de la Figure de la Terre. Amsterdam, 1723._) _Fig. 5_ _R.B.Cubits._ FB = 640 EB = 504 BA = 672 BA = 672 AF = 928 AE = 840 DC = 1080 NO = 768 CA = 1440 OF = 1024 AD = 1800 FN = 1280 DG = 576 AY = 288 GE = 768 ZY = 384 ED = 960 ZA = 480 _R.B. Cub._ _At level of Cephren's_ } {_Cheops' Base_ 420 _Base which is the plane_} {_Cephren's Base_ 420 _or level of the plan_.--} {_Mycerinus' Base_ 218