406 RECENT MEASURES AT THE GREAT PYRAMID. 



part of each side of the Great Pyramid. All the fragments nearly of those hills 

 seem, from their composition, to have belonged to the casing-stones ; but only a 

 few are provable, by chancing to have a portion of the bevilled surface and an 

 adjoining portion of one of the horizontal surfaces, or an arrangement capable of 

 showing the angle of the ancient slope. 



The sixteen specimens presented to the Royal Society, Edinburgh, are of this 

 latter class, and are arranged as follows :— 



Three specimens showing the upper angle of the casing-stone or 128 s 9', are inserted along the 

 similar edge of a wooden model of a casing-stone 20 inches long and 7 inches high, and with the 

 angle made true according to the theory. 



One large specimen of the 128° 9' angle, and another of the 51° 51' angle standing upon it, are 

 nserted in a model of a casing-stone 24 inches long and 5 inches high. 



And eight specimens of the 128° 9' angle, with three of the 51° 51' angle are arranged partly in 

 a horizontal section, and partly at the foot of a model of the whole Pyramid ahout 25 inches long in 

 one side of its base, and with the angle of the sides true according to John Taylor's theory of them. 



Finally one small fragment of a casing-stone recently cut and polished, to show the nature of 

 the material. 



