THE ROLLING CARRIAGE. 101 



October 25, 1888. 



PRESSURE ON EIGHT-INCH SQUARE PLANE (413 square centimeters). 



Barometer, 738 mm. ; mean temperature, 16°.0 C. ; wind velocity, 0.13 meter per second. 



October 29, 1888. 



PRESSURE ON SIX-INCH SQUARE PLANE (202 square centimeters). 



Barometer, 735 mm. ; mean temperature, 12°.0 C. ; wind velocity at 1 p. m., 3.3 meters per second. 



