APPENDIX A 285 



bushes 4 or 5 feet high, grow most luxuriantly in this 

 region, one species (//. Stuhlmanni, var. latifolium) 

 being found nearly up to 15,000 feet. A small Arabis 

 {A. alpina) was found at 14,000 feet, and a rush {Luzula 

 Johnstoni), a grass {Poa glacialis), and mosses were 

 found growing up to the level of permanent snow. 



To this zone belong the following plants : Galium 

 serrato-hamatiim, sp. nov. (at 12,500 feet), Helichrysmn 

 Stuhlmtmni (at 13,000 feet), Senecio gymnoides, sp. nov. 

 (at 12,500 feet), Rubtts rtmssorensis, Sedum ruwen- 

 zoriense, Carpha Emini, and Carex runssorettsis. At 

 14,000 feet was found an interesting new alchemilla 

 {A. subnivalis). 



When it is remembered that all the plants which 

 have hitherto been brought from Ruwenzori have 

 been collected in the Mubuku Valley on the east side, 

 on the southern foot-hills, and (a very few) in the 

 Butagu Valley on the west side, it will be seen that 

 there still remains a very large portion of the range in 

 which future explorers may expect to make botanical 

 collections of the greatest interest. 



APPENDIX B 



SLEEPING SICKNESS 



Sleeping sickness, properly so-called, is the name 

 applied to the terminal stages of trypanosoma infec- 

 tion, or trypanosomiasis. 



Trypanosomes belong to the Hcemoproteida\ a group 

 of the Hcemoprotozoa, organisms which inhabit the 

 blood of many vertebrates, fishes, birds, reptiles, and 

 mammals. The disease has been known in Africa for 

 more than a century, but its connexion with the try- 

 panosome was not recognized until 1902. In that 



