ON NATURAL HISTORY MUSEUMS. 17 coast of our county. A chart shows the physical conditions of the North Sea, whilst a large series of coloured plates, from Couch's work, serves further to illustrate the local ichthyology. Let the anglers in the Essex rivers never forget that certain freshwater fishes are still wanted to complete the collection ; and, I believe, that some of the less common marine species are also needed. In a glass case ou the left of the entrance an attempt is made to illustrate the Amphibians and Reptiles of Essex. A fairly com- plete set of the Mammals of Essex, with skulls and skeletons of many species, is at present placed in the Small Hall, near the Curator's Room. The Birds of Essex are represented by a series of stuffed specimens in the glass cases which run round the walls of the museum, whilst these birds are associated in many cases with their nests and eggs, forming groups which offer an interesting insight into local bird-life. Many of the ornithological specimens are due to the generosity of Dr. Laver, of Colchester, who has also presented valuable collections of local lepidoptera and land and fresh-water shells. It is the intention of the Curator to collect a series of speci- mens of local interest, in illustration of Economic Zoology, including especially the Mollusca and Crustacea which come into London from the estuary of the Thames and other parts of the Essex coast. Such a collection would do much to excite an interest in familiar objects, and might be useful as serving to show the visitor that science does not stand aloof from the incidents of daily life. In the Small Hall, to which reference has been made above, there is now exhibited a small collection of Prehistoric and other Antiquities, including many objects of local interest, especially the relics from the Dene-holes, the Red Hills, and the settlement at Braintree. Further reference to these is rendered unnecessary, however, by the excellent descriptions in the little handbook by Mr. F. W. Reader.17 Although scarcely coming within the scope of a museum mainly devoted to natural history, I should like to see our museum possess a Technological Department, in which the industries of Essex should be illustrated, especially those which are extinct or tending to extinction. 17 A Handbook to the Collection of Prehistoric Objects in the Essex Museum of Natural History. By F. W. Reader. B