xl PROCEEDINeS OF THE 



Pedras de Guinga, the bauks of the Lombe and the Cuige, and 

 penetrating as far as the islands of Calemba, in the Cuanza, and the 

 immense forests which stretch from Quisonde to Condo, near the 

 cataracts of the river Cuanza. This point, about 250 miles from the 

 coast, was the furthest to the east which was reached. On his way 

 back to Pungo-Andongo, Dr. Welwitsch visited the salt lakes of 

 Quitage and the magnificent forests on the right banks of the 

 Cuanza, and during a short stay at Pungo-Andongo explored the 

 woods beyond the Rio Luxillo and in the direction of Cambambe. 

 After this he returned to his old station of Golungo-Alto, and 

 ultimately to Loanda, reaching it in August 1857. 



Up to this time the territory explored by Dr. Welwitsch com- 

 prised a triangle, of which the base, of about 120 geographical 

 miles, occupied the coast, whilst the apex was the point already 

 mentioned at Quisonde, on the right bauk of the Cuanza. During 

 his period of illness and forced inaction at Loanda, he corresponded 

 with botanists ; and in June 1858 drew up a valuable record of his 

 travels, in the form of a Mappa Phyto-geographica, or tabular view 

 of his botanical collections. This was published at Lisbon, under 

 the title of " Apontamentos Phyto-geographicos sobre a Flora da 

 Provincia de Angola na Africa Equinocial," in the ' Annaes do 

 Conselho Ultramarino ' for December 1858. From this paper we 

 learn that he had collected and ai^anged 3227 species of plants (to 

 which 510 were afterwards added) in Angola proper. Under each 

 family is given the whole number of species collected, followed, in 

 columns, by the number in each of the three regions (littoral, 

 montane, and high tableland) into which for scientific purposes he 

 divided the country. This is followed by lists of the cultivated 

 plants in each family, and notes on the distribution and most 

 characteristic species found. Many new species are fii'st mentioned 

 or described in the appendix which concludes this concise but com- 

 prehensive treatise. 



Successful as had been the scientific results of these travels, they 

 had been attained only at the price of shattered health, and rest N^as 

 absolutely necessary. A short trip to the district of Libongo, north 

 of Loanda, was the only journey made till June 1859, when his 

 health having been somewhat restored, though still suffering from 

 fever, Dr. Welwitsch recommenced his explorations in another 

 direction. His intention was to investigate the littoral region of 

 Benguela and Mossamedes only ; but his travels, fortunately for 

 science, extended over a greater extent of country. After a short 



