1823.] New Scientific Books. 317 



Copper Mine River, is in the Press. It will be illustrated by nume- 

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Mr. Bowdich has in the press, a Sketch of the Portuguese Establish- 

 ment in Congo, Angola, and Benguela, with some Account of the 

 modern Discoveries in the Interior of Angola and Mosambique. 



JUST PUBLISHED. 



An Epitome of the Elementary Principles of Natural and Experi- 

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 and present State of the Steam Engine. By John Millington, MGS. 

 Professor of Mechanics at the Royal Institution, Secretary to the 

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A Geometrical System of Conic Sections for the Use of Mathema- 

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Elements of Practical Mechanics. By Giuseppe Venturoli, Pro- 

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Observations on the Effects of Lightning on Floating Bodies, with 

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An Essay on the Medicinal Efficacy and Employment of the Bath 

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Digitalium Monographia, sistens Historiam Botanicam Generis; 

 tabulis Omnium Speciarum hactenus cognitarum illustratam, ut pluri- 

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The Natural History of the Lepidopterous Insects of New South 

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The Birds of New South Wales, and their Natural History. By the 

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The Linnean System of Conchology, describing the Orders, Genera, 

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An Account of some recent Discoveries, Hieroglyphical Literature, 

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