PLATES. 



I. Illustrative of the Geology of Australia. 

 II. Prof. Oersted's Apparatus for Measuring the Compression of Gases. 



III. Barclay's Hydrostatic Quadrant. 



IV. Illustrative of Mr. Davies's Properties of Pascal's Hexagramme 



Mystique. 



ERRATUM 



In Mr. Bevan's Table relative to the Cohesion of Wood, p. 270, No. 34, 

 for Line, log, read Line. bog. 



