8. HISTORY OF BRITISH SEAWEEDS. By Dr. Landsborough. Twenty Plates.

9. POPULAR BRITISH CONCHOLOGY. By G. B. Sowerby, F.L.S. Twenty plates.

10. POPULAR BRITISH ORNITHOLOGY. By P. H. Gosse. Twenty Plates.

11. HISTORY OF THE MAMMALIA. By Adam White, F.L.S. Sixteen Plates.

12. POPULAR MINERALOGY. By Henry Sowerby. Twenty Plates.

13. HISTORY OF THE AQUARIUM. By G. B. Sowerby, F.L.S. Twenty Plates.

14. HISTORY OF MOLLUSCA. By Mary Roberts. Eighteen Plates.

15. POPULAR GARDEN BOTANY. By Agnes Catlow. Twenty Plates.

16. POPULAR ECONOMIC BOTANY. By T. C. Archer. Twenty Plates.

17. HISTORY OF BRITISH FERNS. By T. Moore, F.L.S. Twenty-two Plates.