THE ROLLING CARRIAGE. 103 



November 2, 1888. 



PRESSURE ON SIX-INCH SQUARE PLANE (232 square centimeters). 



Barometer, 735.6 mm. ; mean temperature, 19°.0 C. ; wind velocity. 1.5 meters per second. 



PRESSURE ON ONE-FOOT SQUARE PLANE (929 square centimeters). 

 Note : Wind too high for best results. 



