A series of preparations from Opium, presented by the Society of Apothecaries, Apothecaries Hall, and specimens of other narcotic agents are exhibited in Case 92. The fruits of narcotic plants are sometimes consumed in this country in mistake for other plants, producing fatal effects. Examples of some of these poisonous plants are exhibited in the Collection, as well as diagrams of others. * * * * * Before closing this necessarily brief Guide to the Food Collection, it may be as well to notice some illustrations which may be deemed exceptional to the Classification. _Fungi_.—The group of Fungi contains a number of plants which are eaten as food, whilst many of them act as virulent poisons. Those which are edible contain varying quantities of starch, sugar, woody fibre, and albumen, together with an acid called _fungic_ acid. A large number of species are eaten on the continent of Europe, which are not used in this country at all. Models of the common Mushroom, the Morel, and the Truffle, are shown, as well as preserved specimens. The visitor should notice the large Truffle from Australia called “Native Bread.” It is in Case 34. A series of coloured diagrams or drawings of British Fungi taken from living specimens, both edible and poisonous, are also exhibited, having been purchased from the artist, H. Worthington Smith, Esq., F.L.S. _National Foods_.—Various food products of foreign nations are included in the Collection, and for the sake of illustrating _National Food_ have been kept separate. It is hoped that other collections of the same kind, illustrating _national peculiarities of diet_ may be formed and presented to the Museum. In Cases 72 to 78 is an important collection of Chinese Food, which was received in 1859. The collection was procured from two districts, Shanghae and Foo-Chow-Foo, and contains many curious and interesting edible substances and preparations, some of them new to this country. Descriptive labels are attached to every specimen. Japanese, Siamese, and East Indian food products are shown in Cases 81 to 86. In Case 79 will be noticed a series of _edible birds’ nests_ from China, Siam, Java, Borneo, and other countries. These nests are formed by swallows, two specimen of which are shown in the case. ECONOMIC ENTOMOLOGY APPLIED TO FOOD AND FORESTRY.