Note 372 — APPENDICES.
Reading edition
Sir John Herschel, by very careful experiments, found that, when the temperature of the air is 62° of Fahrenheit, the rate of progress is 1125 per second. This is a mile in 4·7 seconds.
Reading edition
Sir John Herschel, by very careful experiments, found that, when the temperature of the air is 62° of Fahrenheit, the rate of progress is 1125 per second. This is a mile in 4·7 seconds.