310 . NATURAL SCIENCE. Oct.. 



to the Miocene of Sansan, a somewhat lower horizon than that to 

 which it has previously been referred. 



The paper also includes descriptions of the Carnivora, Rodentia, 

 and Artiodact} la from the same deposits. 



We have received a " Geological Sketch Map of Western Australia, 

 1894, by Harry Page Woodward, Government Geologist, Perth." 

 The Recent and Tertiary rocks form a fringe of varying width along 

 nearly the whole of the coast, and are somewhat extensively developed 

 in the southern portion, or Eucla division. The Mesozoic rocks, 

 bounded on the west by the Recent and Tertiary, and on the east by 

 the Metamorphic and Palaeozoic rocks, extend from near Gingin, 

 north of Perth, northwards to Cape North-West. The Palaeozoic 

 rocks (Carboniferous and Devonian) are largely developed ; they have 

 an enormous extent in the neighbourhood of the Gascoyne, Henry, 

 Ashburton, and Fortescue rivers, and also in the Kimberley division ; 

 they appear also on the Irwin river and to the north of Albany. The 

 Metamorphic and Igneous rocks are shown to occupy a much greater 

 area than even the Palaeozoic ; they stretch through the south-west 

 and Gascoyne divisions as a broad band, nearly parallel to the western 

 coast, and occur also in the north-west and Kimberley divisions. 

 The various gold-fields are indicated, as well as the districts in which 

 copper, lead, tin, and coal have respectively been found. This map 

 should prove of the greatest value to all who are interested in the 

 geology of Western Australia. 



We may add that three other works on Western Australia are also 

 reviewed in the September number of the Geological Magazine. It is 

 rapidly taking a foremost place among the Australian colonies, and in 

 extent of territory it greatly exceeds the others. A sum of ^71,482 

 has lately been voted for public works and buildings, including 

 ;/^2,ooo for the building of a museum in Perth. 



In the first part oi the new Proceedings of the Victovia Institute of Trinidad, 

 Mr. R. J. L. Guppy gives an account of the edible molluscs of Trinidad. 

 Two or three kinds of oysters are eaten by Europeans, but among the 

 lower orders they are in little favour. Asaphis deflorata, when well 

 cooked, Mr. Guppy pronounces most delicious; Mytiltis brasiliensis and 

 Venus gramilata are common in the markets. The North American 

 clam is a Venus, but is a very diflferent species, and is absent in 

 Trinidad. Dona.x, and that large bivalve Pinna, are commonly used, 

 but Mr. Guppy has no personal experience of them. Nearly all the 

 fresh-water molluscs are eaten. The land molluscs are less in 

 request, although the large Bulinms oblongus is said by French writers 

 to have flesh which, though somewhat leathery, possesses a delightful 

 aromatic flavour. What Mr. Guppy believes to be the kitchen 

 middens of the aboriginal inhabitants show that a larger number of 

 molluscs were consumed by them. 



Mr. R. J. Lechmere Guppy sends us a reprint of his paper on the 

 Microzoa of the Tertiary and other rocks of Trinidad and the West 

 Indies. The paper appeared in the Journal of the Trinidad^ Field 

 Naturalists' Club. It sums up the results of former publications by the 



