Samuel Baker

"During our march the simoom was fearful, and the heat so intense that it was impossible to draw the guncases out of their leather covers, which it was necessary to cut open. All woodwork was warped; ivory knife-handles were split; paper broke when crunched in the hand, and the very marrow seemed to be dried out of the bones. The extreme dryness of the air induced an extraordinary amount of electricity in the hair and in all woollen materials. A Scotch plaid laid upon a blanket for a few hours adhered to it, and upon being withdrawn at night a sheet of flame was produced, accompanied by tolerably loud reports."