twenty minutes past six o’clock
I as yet suffered no bodily inconvenience , breathing with great freedom , and feeling no pain whatever in the head . The cat was lying very demurely upon my coat , which I had taken off , and eyeing the pigeons with an air of nonchalance . These latter being tied by the leg , to prevent their escape , were busily employed in picking up some grains of rice scattered for them in the bottom of the car . `` At twenty minutes past six o'clock , the barometer showed an elevation of 26,400 feet , or five miles to a fraction . The prospect seemed unbounded . Indeed , it is very easily calculated by means of spherical geometry , what a great extent of the earth 's area I beheld . The convex surface of any segment of a sphere is , to the entire surface of the sphere itself , as the versed sine of the segment to the diameter of the sphere .