The expedition halted under a thorn tree ninety yards in diameter 



the failure to provide posho. In British East Africa government land regu- 

 lations require that each porter engaged receive regularly his pound and a 

 half of ground meal a day. Failing that, he has a grievance against his 

 employer that frees him from any obligation to serve. Now one hundred 

 men eat 150 pounds a day, i.e., 4500 pounds a month, or 27,000 pounds in 

 six months. In our case we had been obliged to carry all this over one hun- 

 dred and fifty miles on men's heads or by donkeys before it was available. 

 To keep the expedition in food I hired a small herd of donkeys (a donkey- 

 load is 120 pounds) and kept it constantly traveling between depots in the 



We were obliged to transport the supplies and equipment of the expedition one hundred 

 and fifty miles from the railroad to the Nzoia Plateau 



306 



