Hi Hans,
There seems to be an annoying bug in academia.edu, especially with large pdf's; l often scroll through a document and then it will miss pages or jump back to half way through the pdf. I often find it better to just download a article. You can read it on researchgate, its not so buggy over there. Once l've finished playing santa and ate all the mince pies, l was thinking of doing a guide on all the queens pyramids at Giza; if anyone has images of the inside of these structure please send me a pm, as l can't find a lot. I could find no primary resource on the heiroglyphs by the entrance. It would be interesting if modern photographic techniques could squeeze a few more glyphs out of it.