Alexandria, Wallace at, i. 45-7

Allbutt, Sir Clifford, theory of generation, i. 214

Allen, Charles (Wallace's assistant), i. 39, 40, 46, 48, 49, 51, 53, 54, 60, 79

—— Grant, on origin of wheat, ii. [46];
Wallace and, [219]

Alpine plants, i. 210, 311

Amazon and Rio Negro, Wallace's exploration of, i. 26-30

Amboyna, Wallace at, i. 106

America, Wallace's lecture tour in, ii. [14]

"Anatomy of Expression," Bell's, i. 182

"Ancient Britain and the Invasions of Julius Cæsar," Holmes's, ii. [86]