XXXVI 



INTRODUCTION. 



an average length of 150 feet, with a width of 3 feet and a 1-inch mesh. This net is 

 used in shallow water and is either set up by means of stakes, with about 9 inches of 

 the net showing above the water, or else without stakes, except one at each end, when 



Tig. 17. 





/ 



V 



X 



■J 



./ 



the top line is held up by means of wooden floats. In each case rings of pottery are 

 used as weights (fig. 17, a). The net when seen from above is arranged as in fig. 17, b. 

 The " gourrafa " or " ghazl-el-dowar " differs from the net called by the former name 

 on the Nile in having a pocket in the middle. It is about 100 metres long and 



Kg. 18. 



2§ wide with a f-inch mesh, the mesh of the pocket being smaller. Wooden floats 

 and lead weights are used and a long and strong rope is attached to each end of the 

 net. It is worked in the usual way (fig. 18), a large piece of water being enclosed 



