30 



SMITHSONIAN MISCELLANEOUS COLLECTIONS VOL. 72 



Fii,. 42. — Pnmitue irrigating machinerj-, on the Blue Nile at Khartoum, 

 August, 1920. Oxen, donkeys or camels are used to turn such water 

 wheels. 



Fig. 43. — Sheep grazing near the temple of Medina Hahu in Upper Egypt. 



