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GUIDE-BOOKS. 
Mineral Department. 
A Guide to the Mineral Gallery. With Plan. 8vo. Id. 
The Student's Index to the Collection of Minerals. Plan. 8vo. 2d. 
An Introduction to the Study of Minerals, with a Guide to the 
Mineral Gallery. 41 Woodcuts and Plan. 8vo. 6d. 
An Introduction to the Study of Rocks. With Plan. Bvo. 6d. 
An Introduction to the Study of Meteorites, with a List of the 
Meteorites represented in the Collection. With Plan. 8vo. 6d. 
Botanical Department. 
Guide to Sowerby's Models of British Fungi. By W. G. Smith. 
93 Woodcuts. 8vo. 4c?. 
Guide to the British Mycetozoa. By Arthur Lister. 45 Wood- 
cuts. 8vo. Sd. 
Books and Portraits illustrating the History of Plant Classification 
exhibited in the Department of Botany. 4 Plates. 8vo. 4d. 
The Guide-Boohs can he obtained only at the Natural History 
Museum. Postage extra. Written communications respecting them 
should he addressed to The Director. 
