xii ILLUSTRATIONS 



"Maen Madoc," Upper Vale of Neath . . . To face p, 249 



{From three photographs by Miss Neale) 



Latin Inscription on "Maen Madoc" ... „ 251 



Alfred R. Wallace. 1848 „ 264 



(^From a daguerrotype) 



Fishes of the Rio Negro : 



{From drawings by A. R. Wallace) 



1. Cynodon Scombroides. Fam. Characinid^ „ 285 



(One-fourth natural size) 



2. XiPHOSTOMA LATERISTRIGA. FaM. CHARA- 



CINIDiE ,,285 



(One-third natural size) 



3. Pimelodus Holomelas. Fam. Silurid^e . „ 286 



(One-third natural size) 



4. Plecostomus Guacari. Fam. Loricariid^ . „ 286 



(One-third natural size) 



5. Pterophyllum Scalara. Fam. CiCHLiDiE . „ 286 



(One-third natural size) 



6. CiCHLOSOMA SEVERUM. FAM. CICHLID/E . . „ 286 



(One-third natural size) 



H. E. Wallace. Age 8 ,,289 



{From a pencil sketch by Miss Townsend) 



Herbert Edward Wallace. Age 20 . . . „ 289 



{From a silhouette) ^ 



The Rio Negro ,,320 



{From observations made in the years 185 1 and 

 iZ^i by Alfred R.Wallace) 



Enlarged Map of the River Uaupes ... „ 320 



Alfred R. Wallace. 1853 „ 324 



{From a photograph by Mr. Sims) 



Native House, Wokan, Aru Islands ... „ 357 

 (Where I lived two weeks in March, 1859) 



My Faithful Malay Boy— All 185 5-1 862 . . „ 383 



Map of the Malay Archipelago .... „ 384 



Alfred R. Wallace. 1869 „ 385 



{ From a photograph by Mr. Sims) 



