266 
WAE IN THE AIR 
he struck it with his hoe he thought it was a stone and un- 
fortunately chipped a large piece off the side and also scraped 
the bottom. The bowl seems to have been hollowed out of 
a sort of soft stone. I do not think that it could possibly be 
any kind of earthenware, as it is not burnt, and I do not think 
unburnt pottery could have lasted as it has done. I have asked 
many old men about it, but one and all declare that they have 
no idea what it is or where it came from, and state, further, that 
the stone from which it is made is not known to them. Un- 
fortunately, shortly after the discovery the roof of the particular 
excavation in which the bowl was found fell in, owing to the 
rains bringing down a whole mass of roots and rubbish, and in 
consequence I could not locate the exact spot. It was not, 
however, a very deep cave, and the bowl was found near the 
entrance. The dimensions of the bowl are as follows : — 
Circumference at widest . 
„ „ lip 
„ „ base 
Inside diameter of lip 
Diameter of base 
Depth at the centre inside 
Height 
Greatest thickness about . 
Weight a little over . 
6 | „ 
28 ins. 
21 1 
21 
6 
6 „ 
3J „ 
£> 2~6 ,, 
2 „ 
6 1b. 
WAR IN THE AIR 
By R. E. Dent 
The following interesting occurrence was observed by me 
near Kyambu. After three days of heavy rain a flight of white 
ants in the winged stage took place on September 22, 1916, 
and, while watching several species of birds feeding on the 
termites, I noticed several of the latter suddenly fall to earth. 
I marked one down and proceeded to investigate the cause, 
