CONTENTS. xi 



of salt — Unhealthiness — Mosquitoes — People on the Nyanza — 

 The Semliki — Butagu valley — Ascent — Attack by natives- 

 Vegetation and insects — Return to Salt Lake — Ascent by 

 Nyamwamba — Monkeys . . . . . . pp. 123-147 



CHAPTEE IX. 

 THE WAWAMBA. 



Wawamba — Affinity — Language — Physical appearance — Character — 

 Raids from the West — German methods — Attack on my men — 

 Tengetenge and his chiefs' desire for Europeans . pp. 148-160 



CHAPTEE X. 

 GEOLOGY. 



The Victoria region — Iron mines — Changes of level — Ruwenzori, 

 according to Stairs, Stuhlmann, and Gregory — Recent volcanoes- 

 Hot Springs — Glaciation — Geology of Central Watershed . pp. 161-177 



CHAPTEE XI. 



METEOROLOGY AND CLIMATE. 



Instruments — Oil-palm, coffee, colony zones, and cloud belt — Short 

 account of climates — Table — Rainfall and monsoons — Climates 

 of Mombasa and Taru, Masai Highlands, Victoria region, 

 Ruwenzori — Cloud phenomena and mountain breeze — Discovery 

 of mountain — Rainfall — Climate of Central Ridge, Tanganyika, 

 Stevenson Road, Shire Highlands, Zambesi valley — Moist heat 

 — Malaria — Mosquitoes — Hints on position of stations . pp. 178-206 



CHAPTEE XII. 

 BOTANY. 



Evolution and systematic botany — Differentiation of species by 

 flowering season — Westerly wet, Central Ridge dry, Easterly 

 wet floras and climate — Statistical method — North to south 

 migration — Origin of Victoria region plants — Origins of Tropical 

 African flora — Comparison with economic regions — South 

 America and Africa — Botanical mountain phenomena . pp. 207-226 



