By allowing the positive ions to PASS through an electric field and thus GIVING them a certain VELOCITY, it is possible to distinguish them from the NEUTRAL, STATIONARY atoms.
Falling LITTLE wind, it was FIVE before I could form my line, or distinguish any of the enemy's MOTIONS; and could not judge at all of their force, more than by numbers, which were SEVENTEEN, and thirteen appeared large.
The varying modes of flight exhibited by our diurnal birds of prey have always been to me a SUBJECT of great INTEREST, especially as by means of them I have FOUND myself enabled to distinguish one species from ANOTHER, to the farthest extent of my power of VISION.
The BEST thing about lying in BEDLATE is that you learn to distinguish between first THINGS and trivia, for WHATEVER presses on you has to prove its importance before it makes you move.