(Now the Natural History Museum, London).

Vol. 1: Libraries; The Department of Botany; The Department of Geology; The Department of Minerals.

Vol. 2.: Separate historical accounts of the several collections included in the Department of Zoology.
       This very extensive volume includes chronologies of accessions and detailed references of the extent and type of specimens obtained from different sources for each category of the museum's collections. It thus represents a kind of history of natural history specimen collecting world-wide up to date of publication. The chapters in vol. 2 are:

1. Mammals by Oldfield Thomas
2. Domesticated animals, hybrids, and abnormalities by R. Lydekker.
3. Birds by R. Bowdler Sharpe
4. Reptiles and Batrachians by G. A. Boulenger
5. Fishes by G. A. Boulenger
6. Insecta by [various authors]
7. Arachnida by R. I. Pococke
8. Myriopoda by R. I. Pococke
9. Mollusca by E. A. Smith
10. Crustacea, echinoderms, peripatus worms, and anthozoa by F. Jeffrey Bell.
11. Protozoa, proifera, hydrozoa, polyzoa, brachiopoda, and tunicata by R. Kirkpatrick.

Vol. 3: Appendix. General history of the Department of Zoology from 1856-1895 by Albert Günther. Digital facsimile  from Biodiversity Heritage Library at this link.