| A Monograph of the Trochilidae or Family of Humming-Birds: Heliopaedica Xantusi; Hylocharis Cyaneus; Hypuroptila… | 1998-10-21 | Christie's | GBP 920 |
| A Monograph of the Trochilidae or Family of Humming-Birds: Cephalepis Loddigesi; Chlorostilbon Alice; Chlorostilbon… | 1998-10-21 | Christie's | GBP 1,265 |
| A Monograph of the Trochilidae or Family of Humming-Birds: Metallura Tyrianthina; Metallura Smaragdinicollis… | 1998-10-21 | Christie's | GBP 977 |
| A Monograph of the Trochilidae or Family of Humming-Birds: Campylopterus Lazulus and Aglaectis Caumatonota | 1998-10-21 | Christie's | GBP 322 |
| A Monograph of the Trochilidae or Family of Humming-Birds: Calothorax Pulchra; Campylopterus Latipennis and… | 1998-10-21 | Christie's | GBP 437 |