XLII. Electricity of the Atmosphere in Thunder Storms...
XLIII. Sketch of Col. Macquarrie's Route in New South Wales
XLIII. [Duplicate.] Various Figures ....
XLIV. Col. Beaufoy's Instruments for trying the Stability of Vessels.. 184 XLV. Diagrams on the same Subject, &c.....
XLVI. Variations in the Barometer and Thermometer at Plymouth,
July to December, 1815 ....
XLVII. Plan of ventilating Coal-Mines
XLVIII. Letter-Press Meteorological Table
XLIX. Progress of Vegetation on Mountains in different Latitudes.... 385 On the upright Growth of Vegetables, and various Diagrams.. 449