es WATER SUPPLIES IN THE ANGLO-EGYPTIAN SUDAN.

S INTRODUCTORY.

a CHAPTER I.—METEOQROLOGY.

re Meteorological Observations ; : ate a, yi Rainfall eee eee eee ae eee aee ae Ss The Nile Floods iy Mais ay A Lhe ? Le Evaporation ... ate ABP . ; : . CHAPTER I[I.—GENERAL PRINCIPLES GOVERNING GROUND ad WATER AND ITS MOVEMEN Disposal of Rainfall Permeable and Porous Rocks Movement of water in Rocks CHAPTER I[II.—GEOLOGICAL WATER SUPPLIES.

FORMATIONS IN “Lore RELATION General : or ‘ The Crystaline . Rosie. ye The Nubian Sandstone Series igs ay a Volcanic Formations ... 2s He The Loess ¥ A Dune Sands _... A wi Alluvium a CHAPTER IV.—WATER SUPPLY REQUIREMENTS.

os Wells m1 Temporary Supplies » Water Consumption rw Yield of Wells ee Sinking Wells in soft materials Steining ~ Drawing Water ...

—~ Bore Holes a PNUCELS:, \... -el Biv Tube W ells | adaats Deling a: 47 3 <= Sanitation ae Ate CHAPTER V.—CONSTRUCTION OF WELLS AND DRILLING.

Sinking Wells in hard materia!s eee TOM Nees 0 OD 9 I2